There continues to be a fascination with the German atomic
bomb effort from World War II as evidenced by the May, 2022, article
The
elusive truth of Farm Hall. Below I discuss the play "Copenhagen" which made quite a
stir several years ago. Now there is to be a
play
based on the so-called
Farm Hall
Transcripts
[PDF].
These are transcripts of secretly taped conversations of the German scientists (including
Heisenberg) who were interned at Farm Hall in England after the War. It seems to be an endless
game to try to interpret from these conversations what the Germans did and did not know during
WWII about making a bomb.
The play
Copenhagen by the renowned playwright and author Michael Frayn (he
wrote "Noises Off", for example) which explores the occasion in 1941 when
Heisenberg paid a visit to Bohr in Copenhagen. The intriguing question, of
|

Martha Henry as Margrethe Bohr in the Toronto Production
of Copenhagen- PHOTO CREDIT: SWD Photography |
course, is "what did they discuss?" Some speculate that Heisenberg was trying
to obliquely warn Bohr about the German atomic bomb project. There has been
some new (Feb. 2002) light shed on what transpired through the release of some
letters from Neils Bohr (see also
New letters
expose war-time secrets).
There is also a "Heisenberg letter" which can be found at the
Who Was Werner
Heisenberg? site maintained by the Heisenberg family. There one can find
a number of Heisenberg's letters and writings translated into english.
There is also a resources page. The
London version of the play saw very enthusiastic
reviews while the Broadway version won several Tony awards! The play opened
in Toronto in January, 2004. There were good articles on
the show and Frayn in the
Toronto Star
and Globe & Mail.
I saw the opening-night
show on January 7 (which was great) and there were reviews in the
Star
and Globe & Mail. A
panel discussion of the scientific and ethical
issues addressed by the play happened on February 8, 2004, and I was one of the
panelists.
There were a number of symposia, both in
Europe and
the U.S.,
discussing the issues surrounding the play. For example, there
was a day-long symposium on the play
"Creating Copenhagen"
at the City University of New York
which examined the scientific and historical issues brought up in the play
as well as artistic issues associated with the writing and staging of the play.
Several of the presentations at this symposium were reprinted in the
July 2000 issue of
Physics Today including:
A
Historical Perspective on Copenhagen,
The
German Uranium Project, and
Werner
Heisenberg and Albert Einstein. There is also a nice bit of detective
work by Jeremy Bernstein in
The Drawing or Why History Is Not Mathematics from the journal
Physics in Perspective.
I also recommend the book by
Jeremy Bernstein entitled Hitler's Uranium Club.
The play was the subject for the University of Pennsylvania's
1999
Reading Project. At this site you can find a number of fascinating essays
about the play written by both artists and scientists.
There are also articles in
May 1999
CERN Courier and
June 1998 PhysicsWeb
discussing the play.
(There is another article by Jeremy
Bernstein on
Heisenberg's trip to Poland in 1943.) Finally, there are a
recent (January 2010) set of remarks entitled
Quantum imaging:
Scattered observations on "Copenhagen" which offer yet another take on
the play.
Over a hundred years ago (November 25, 1915 to be precise)
Einstein submitted
his paper on the General Theory of Relativity. Here are a few articles that commemorated this
event:
-
Nature Special Issue - General Relativity at 100 - November, 2015
-
On the Anniversary of Two Scientific Revolutions - November, 2015
-
What Is General Relativity?
- November, 2015
-
Space, the Frontier Right in Front of Us
- November, 2015
-
A Century Ago, Einstein's Theory of Relativity Changed Everything
- November, 2015
Albert Einstein and Relativity in the Pages of The (NY) Times
- November, 2015
-
Researcher's work offers more proof of Einstein's general theory of relativity
- November, 2015
-
How Politics Shaped General Relativity
- November, 2015
Einstein's Biggest Triumph: A Century of General Relativity (Op-Ed)
- November, 2015
-
Standing the Test of Time (and Space) - October, 2015
-
General Relativity: 100 Years Old And Still Full Of Surprises
- October, 2015
There has been an increasing
interest in science shown by artists and vice versa.
which has lead to some interesting artworks - like those shown in the exhibit
Signatures of
the Invisible. There is also an interest from the scientist's side to
see how artists perceive science. Towards this end, the British Institute
of Physics commissioned the Rambert Dance
Company to produce a new work to celebrate the achievements of
Albert Einstein -
Celebrating Einstein with Dance,
Constant Speed (brochure)
premiered in 2005. The originators of the project were
interviewed in New Scientist.
Time is a particularly sticky problem and has been an obsession
of philosophers and physicists since, well, since time immemorial.
A nice overview is given in Time examined and time experienced (2018).
The topic has generated lots of musings such as
The Period of the Universe's Clock (June, 2020)
[The PRL article is Physical Implications of a Fundamental Period of Time]
and The origins of space and time (August, 2013).
Einstein's Clocks
(October, 2015) is a layman's discussion of the conundrum of time by Fermilab's Don
Lincoln. Check out the
essay entries (December 2008) to
fq(x) - Foundational Questions in Physics and Cosmology on
The Nature of Time. There is also a book by
Dan Falk called
In Search of Time: Journeys along a Curious Dimension
about which the Ottawa Citizen said
"Falk's book is what Hawking's A Brief History of Time should have
been." Falk has also posted an
essay on time travel which you might find amusing. In 2013, Lee Smolin
also put out a book on time called
Time Reborn which you may want to peruse.
There has always been plenty of verbiage on that old chestnut,
"Did time begin with the Big Bang?" Have a look at another video from Don Lincoln on
The Big Bang Theory
(October, 2014).
There's also The
First Second After The Big Bang (September, 2014) from the Universe Channel.
An August, 2010 article
Death Of The Big Bang, Or The Problem Of Time's Beginning also discusses the issue.
Various physics heavyweights have
weighed in on the matter in the past little while including Stephen Hawking on
The
Beginning of Time. There are several sites on how one experimentally
examines such a question including
Observing the Beginning of Time and
Beyond Einstein. Finally, this is a question with a long history of
theological debate. If you are interested in this kind of thing, have a look
at "Genesis: Science and the Beginning of Time"
[PDF] or
God and the Beginning of Time for a religious perspective. (I won't bias you
with my opinion but would be happy to discuss it).
A number of years ago all of
Einstein's scientific writings were made available online at
Einstein Archives Online.
English translations of his five famous papers from
the "miracle year" 1905 are collected in the book
Einstein's
Miraculous Year: Five Papers That Changed the Face of Physics.
Now (December, 2014) the Collected Papers of Albert Einstein including love letters,
report cards, personal thoughts and experiences are available online
here
both in the original german and with english translations. There's a nice article about the
release of the papers
- Inside the mind of Einstein: 44 years of writings released online -
from the December 6, 2014 Globe & Mail.
This is actually old, not new, but back in 2002 the electron double slit experiment was voted as
Science's most beautiful experiment. There are some other great one's in the list as well as
described in
Here They Are, Science's 10 Most Beautiful Experiments.
There is a new American Institute of Physics site on my hero
Rutherford.
There is also the Rutherford site
maintained by his biographer John Campbell.
There is
a nice book by
David Bodanis called E=mc2 (naturally)
which dissects, in a very entertaining manner,
each of the terms in Einstein's most famous equation. See also
Fermilab Today from July 5, 2013 for another discussion of
the famous equation. There are further discussions in Fermilab Today about
"Proving special relativity" -
episode 1
- Friday, March 21, 2014 and
episode 2 - April 4, 2014.
There is a special issue of Nature
on The Quantum
Atom which explores "the origin and legacy of Niels Bohr's radical view of the
nuclear atom, published one hundred years ago." We can now
"see" the Bohr orbitals as discussed in
Direct view of atomic orbitals (June, 2013),
'Quantum microscope' peers into the hydrogen atom, and
A New Look at the Hydrogen
Wave Function (May, 2013)
or watch electrons in motion as summarized in
Electron spectroscopy: Not just snapshots, real movies (July, 2013).
There is also the theoretical
question about how big atoms can be which is covered in
Theoretical physics: Sizing up atoms.
The foundations of the quantum world
are still hotly debated. For discussions of this have a look at:
The Oxford Questions on the
foundations of quantum physics (July, 2013),
Science and Philosophy: A
Love-Hate Relationship (July, 2013), and
Einstein as armchair detective:
The case of stimulated radiation (July, 2013).
See also A Quantum of Solace - Timeless Questions About the Universe.
Entanglement and the Uncertainty Principle are always hot topics. See, for example,
Measurement Uncertainty:
Reply to Critics (February, 2014),
Proof mooted for quantum uncertainty (June, 2013),
Spooky action gets collective (June, 2013),
Quantum uncertainty not all in the measurement (September, 2012),
Experimental demonstration of a universally valid error-disturbance uncertainty relation in
spin measurements (January, 2012),
Quantum theorem shakes foundations (November, 2011), and
A quantum take on certainty (June, 2011).
Or how about the lowly photon. Read
here for
the unlikely origin of its name. It is still
being studied, as evidenced by the July, 2013 articles
How Stable is the Photon? and
Detection of single photons via quantum entanglement.
You can read a reconstruction of a
lecture Einstein gave on the equivalence of mass and energy in Pittsburgh in 1934. Included in
|

Einstein lecturing in Pittsburgh in 1934 |
the article this picture of Einstein lecturing that was in the newspaper.
See how Albert Einstein did on his
performance review
at the patent office in Bern for the year 1905.
Ride a relativistic rocket! Physicists at
the Australian National University have created a computer program called
Real Time Relativity
that "allows the user to fly through a virtual world governed by relativistic physics." You
can download the program from here.
I also highly recommend
the book Einstein's Dreams
by Alan
Lightman who is
John E. Burchard Professor of Science and Writing and senior lecturer in
physics
at the Massachusetts Institute of Technology. The book is a beautifully
lyrical, thoroughly entertaining, and wonderfully short, meditation on time
through the artifice of imagining the daydreams of Einstein in 1905.
The book has spawned a
theatrical
adaptation, performed by Raleigh, NC's
Burning Coal Theater
Productions,
which garnered very good
reviews.
There is has always been a lot
of contention about the central principle of the Special Theory
of Relativity - namely, that the speed of light in vacuum
is a constant independent of the source and receiver relative speed.
Further, maintaining causality in Special Relativity requires that
nothing can go faster than the speed of light
in a vacuum and many attempts have been made to circumvent this, thus
obtaining "superluminal" speeds. For example, see
the article
"
Cosmic Laws Like Speed of Light Might Be Changing",
where the possibility that the speed of light
has changed value over time is discussed. A few years ago a number of experiments
involving light propogation through dense media generated a lot of
controversy and juicy headlines like
"Light
Pulses Flout Sacrosanct Speed Limit" (2002 - note the website),
"Faster
than a Speeding Light Wave" (2000), and
"Laser Smashes Light-speed Record" (2000).
Controversy also surrounded a paper in Nature
bearing the innocent sounding title of
"Gain-assisted
superluminal light propagation."
The abstract contained the line,
"The observed superluminal light pulse propagation is not at odds with
causality ..." although you wouldn't know it based on some of the media
coverage about it. This is nothing more than the old
group versus phase
velocity confusion according to Bob Park in
What's New.
The fascination with superluminal speeds is that it is related
to the least understood subject in physics (and philosophy) - time.
The onset of the new millenium produced a renewed fascination with
time.
You can take
A
Walk Through Time, a site on the evolution of time measurement from
The National Institute of Standards and Technology
(NIST) in the U.S.
The article
Seeing Faster by James Gleick in the New York Times Magazine gives
a fascinating glimpse into how flash photography has changed our perception
of time. The site also includes plenty of interesting links.
There seems a particular fascination with time travel including
"Time Travel"
from NOVA as well as
a
site with
"explanations" of relatvity and time travel.
You no longer have to
take my word for it. You can read many of the original papers (in English
translation) which are discussed in this course.
Not only has there been
renewed interest in the speed of light but there has also been an explosion
of interest in the brain of the man who made c a
universal constant. You could see
Samples of Albert Einstein's brain on display at the Mutter Museum
in 2011. And Albert Einstein's brain continues to fascinate - in Hamilton (2015).
In 1999,
researchers at McMaster University concluded that
Einstein really was smarter than the rest of us. Specifically,
"the parietal region of his [Einstein's] brain,
the area thought to be related to
mathematical reasoning, was found to be
15 per cent wider than average."
For complete coverage of the rather interesting history of the travels
of Einstein's brain (after his death, of course), have a look at
What
Became of Albert Einstein's Brain? There are also a number of books on the travels
of his brain including
Driving Mr. Albert
which was the cover review for the
July 30, 2000, New York Times Review of Books (see also the
review in the Globe
& Mail) as well as
Possessing Genius: The True Account of the Bizarre Odyssey of Einstein's Brain.
The story is covered in Chapter 14 of
Postcards from the Brain Museum. There's even
a children's book called
Nibbling on Einstein's Brain.
Einstein's Brain is the source of much art including
a 1994 documentary
Relics:
Einstein's Brain which chronicles the quixotic search for the brain
by a Japanese professor, a folk
album, and an art-science collaboration called
the einstein's brain
project.
Who says that relativistic effects aren't relevant to our everyday world!
A while ago I put a link to
Santa at Nearly the Speed of Light, the article "explaining" how the
answer to that age old question, "Just how does Santa Claus get to
all of those homes in one night?", lies in the
Special Theory of Relativity. There was actually a challenge to the
physics of the article which is gently responded to in
Santa's
World Revisited, an article
in the May, 2000 issue of
FermiNews, the newsletter from
Fermilab, the high energy
particle accelerator near Chicago. In the article is a link to a
website
where there are animations of how, for example, the Eiffel Tower would look
if you passed by at 90% the speed of light. It's worth a look.
Check out the
letter to the editor by
Cyril E. Challice, Professor Emeritus, University of Calgary, that was in
the March 2000 issue of
Physics in Canada.
It gives an interesting Canadian twist to the story of the observation of
the wave nature of the electron by Davisson and Germer.
There are various
online history "exhibits"
from the American Institute of Physics
including:
Albert Einstein: Image
and Impact
Werner Heisenberg and the
Uncertainty Principle
The Discovery of the
Electron
A Century of
Physics
You can also check out Heisenberg's first paper or read about Niels Bohr's letters to his
family and his fiancee in the years 1910-1912 -
Love, Literature, and the Quantum Atom.
The Experimental Evidence link from
the Particle Adventure is a
very nice web-based description of the experimental origins of quantum
physics, and in particular of Rutherford's groundbreaking experiments on the
structure of matter. There is also
All
About Light from
Fermilab which, through a discussion of light, cover much of the course
material.
In honour of the centenary of
the American Physical Society, the journal
Reviews of Modern Physics devoted an
entire issue to reviews of physics of the twentieth century. The following
articles seemed particularly relevant for this course:
"A Century of Relativity" by Irwin I. Shapiro
[pdf]
"Historic Foundations: Quantum
Theory" by Hans Bethe
[pdf]
"Experiment and the
Quantum Effects in One-photon and Two-photon Interference" by L. Mandel
[pdf]
"Experiment and the
Foundations of Quantum Physics" by Anton Zeilinger
[pdf]
Also, there is a new journal concentrating
on the history of physics called Physics in Perspective. The inaugral issue had an interesting article
entitled
"Why was Relativity Accepted?" [PDF]
which gives some of the social and historical context of the times. There is
also an article entitled
"Dispersion
in the Ether: Light over the Water" which concerns a history of the
measurements of the speed of light. Finally, there is an interesting story
about the history of the quantum called
Planck, the Quantum, and the Historians.
There are a lot of good websites devoted to
Einstein. Besides the AIP History site given already, there is
Albert
Einstein Online. There is also
Einstein
Revealed from the science program
NOVA.
The complete text of Einstein's Relativity - The Special and General
Theory can be found
here.
Here are some new results (biased by my interests, needless to
say) from
Quanta magazine,
Physics
Update, Physics
World News, Physical
Review Focus, PhysOrg Physics
News, Science News, and other sites
on topics related to Special Relativity and the foundations of Quantum
Mechanics.
- The physicist betting that space-time isn't quantum after all
- March, 2023
- How Our Reality May Be a Sum of All Possible Realities - February, 2023
- How Quantum Physicists 'Flipped Time' (and How They Didn1t)
- January, 2023
- The Sounds of Atoms - January, 2023
- Arthur Compton and the mysteries of light - December, 2022
- Physicists Create a Holographic Wormhole Using a Quantum Computer - November, 2022
- Creating quantum-entangled networks of atomic clocks and accelerometers - November, 2022
- How to Think About Relativity
- November, 2022
- Why This Universe? A New Calculation Suggests Our Cosmos Is Typical
- November, 2022
- Keeping
time with highly charged ions - November, 2022
- How the Stern–Gerlach experiment made physicists believe in quantum mechanics
- November, 2022
- Experiments Spell Doom for Decades-Old Explanation of Quantum Weirdness
- October, 2022
- Chinese team syncs
clocks over record distance using lasers - October, 2022
- Schrodinger’s buses spotted in Bristol - September, 2022
- Physicists Rewrite a Quantum Rule That Clashes With Our Universe
- September, 2022
- From
atomic to nuclear clocks - September, 2022
- Knitting space–time out of quantum entanglement - September, 2022
- Quantum theory and the Nobel prize - August, 2002
- Turning Back Time on
Space - May, 2022
- Physicists Pin Down How Quantum Uncertainty Sharpens Measurements
- May, 2022 [paper]
- Physicists Rewrite the Fundamental Law That Leads to Disorder - May, 2022
- Pondering the Bits That Build Space-Time and Brains - April, 2022
- A century ago, Alexander Friedmann envisioned the universe's expansion - May, 2022
- Giant leap toward quantum internet realized with Bell state analyzer
- March, 2022
- All-optical attoclock for imaging tunnelling wavepackets
- March, 2022
- Quantum technology could make charging electric cars as fast as pumping gas
- March, 2022
- 100 Years Ago, a Quantum Experiment Explained Why We Don't Fall through Our Chairs
- March, 2022
- How world's most precise clock could transform fundamental physics
- February, 2022
- 'From Data to Quanta' defends Niels Bohr's view of quantum mechanics
- February, 2022
- The conundrum at the heart of quantum physics - and how philosophers of science can help
- December, 2021
- Could a conventional chair be a quantum measuring device?
- November, 2021
- The second quantum revolution
- January, 2022
- Quantum entanglement boosts accuracy of industrial quality inspections
- January, 2022
- 'Strange history' of photons challenges our understanding of quantum interactions
- January, 2022
- Electron's wave nature constructed in the lab at last
- January, 2022
- Gravitational Waves Should Permanently Distort Space-Time
- December, 2021
- Mathematicians Transcend Geometric Theory of Motion
- December, 2021
-
A double-slit experiment without slits
- December, 2021
-
The only known pulsar duo sheds new light on general relativity and more
- December, 2021
-
What We Will Never Know
- November, 2021
-
Deuterium molecules in superposition act as slits for classic quantum experiment
- November, 2021
-
Special relativity keeps digital identities secure
- November, 2021
-
Quantum Cheshire cats could have a travelling grin
- October, 2021
-
An Ultra-Precise Clock Shows How to Link the Quantum World With Gravity
- October, 2021
-
One Lab's Quest to Build Space-Time Out of Quantum Particles
- September, 2021
-
An atomic clock measured how general relativity warps time across a millimeter
- October, 2021
-
Super-precise clock tech wins $3 million physics Breakthrough Prize
- September, 2021
-
Can we see quantum correlations at the macroscopic scale?
- September, 2021
-
Wave-particle duality quantified for the first time
- September, 2021
-
Approaching the Heisenberg limit - July, 2021
-
A Macroscopic Probe of Quantum States - July, 2021
-
Antimatter from laser pincers - July, 2021
-
Trapped-ion clock passes orbital test,
Keeping time in space - July, 2021
-
Detecting mid-infrared light, one photon at a time
- June, 2021
-
Evading the uncertainty principle in quantum physics
- May, 2021
-
Researchers use optical data to reveal the basic structure of spacetime in rotating frames
- May, 2021
-
Is the past (and future) there when nobody looks?
- May, 2021
-
General relativity passes crucial neutron-star test
- May, 2021
-
Vibrating drumheads are entangled quantum mechanically
- May, 2021
-
Quantum Double-Slit Experiment Offers Hope for Earth-Size Telescope
- May, 2021
-
Quantum Entanglement Has Now Been Directly Observed at a Larger Macroscopic Scale
- May, 2021
-
Three top atomic clocks are compared with record accuracy
- March, 2021
-
The Entangled Dance of Atom Beams - February, 2021
-
There's no way to measure the speed of light in a single direction
- January, 2021
The One-Way
Speed of Light and the Milne Universe - January, 2021
-
Rippling graphene harvests thermal energy
- October, 2020 (this is about harnessing Brownian motion)
-
Physicists place fresh limits on gravity’s role in wavefunction collapse
- October, 2020
-
Could Schrodinger's cat exist in real life?
- October, 2020
-
Toward a Perfect Single-Photon Source - October, 2020
-
Mind and space bending physics on a convenient chip
- October, 2020
-
A new interpretation of quantum mechanics suggests that reality does not depend on
the person measuring it - October, 2020
-
One of quantum physics' greatest paradoxes may have lost its leading explanation
- September, 2020
-
Ticking Toward a Nuclear Clock - September, 2020
-
Quantum-tunnelling time is measured using ultracold atoms
- July, 2020
-
Finding a consistent constant
- July, 2020
-
Gamma Rays Provide New
Quantum Gravity Constraint - July, 2020
-
Tabletop device might snare gravitational waves using tiny diamonds - July, 2020
-
New design for 'optical ruler' could revolutionize clocks, telescopes, telecommunications
- June, 2020
-
Levitated timepiece sets new benchmark - June, 2020
-
Physicists create quantum-inspired optical sensor
- June, 2020
-
What a bike moving
at near the speed of light might look like to a human observer - June, 2020
-
A 'pause button' for light particles
- June, 2020
-
Ion Recoil from Photon Beam Observed
- June, 2020
-
Transportable atomic clocks achieve laboratory precision
- May, 2020
-
Locating Objects with Quantum Radar
- May, 2020
-
Schrödinger's original struggles with a complex wave function
- May, 2020
-
Does Time Really Flow? New Clues Come From a Century-Old Approach to Math
- April, 2020
-
Seven formulations of the kinematics of special relativity
- March, 2020
-
Double slits with single atoms - February, 2020
-
Classical time crystals could exist in nature, say physicists
- February, 2020
-
Levitated Nanoparticle Goes Quantum - January, 2020
-
Timing Molecular Motion with an Optical Stopwatch - December, 2019
-
Timing Molecular Motion with an Optical Stopwatch - December, 2019
-
"Tweezer Clock" Offers New Possibilities in Timekeeping - December, 2019
-
Quantum Physics is No More Mysterious Than Crossing the Street: A Conversation with Chris Fuchs
- November, 2019
-
Lighten the dark - November, 2019
-
New optical timekeeper is 10 times more reliable than caesium atomic clocks
- October, 2019
-
Interference of clocks: A quantum twin paradox
- October, 2019
-
Graphene origami reaches quantum precision
- September, 2019
-
A relative revolution - reviews of four new books on Einstein and
his theory of relativity - September, 2019
-
The mysteries of quantum mechanics in graphic-novel form
(Author Q & A: How to write a graphic novel about quantum mechanics)
- September, 2019
-
Quantum Darwinism, an Idea to Explain Objective Reality, Passes First Tests
- July, 2019
-
Physicists can predict the jumps of Schrodinger's cat (and finally save it)
- June, 2019
-
Three ways to travel at (nearly) the speed of light
- May, 2019
-
Researchers successfully sent a simulated elementary particle back in time - May, 2019
-
Stabilizing the no-boundary proposal sheds light on the universe's quantum
origins - May, 2019
-
First demonstration of antimatter wave interferometry - May, 2019
-
100 years on: the picture that changed our view of the universe - May, 2019
-
Turbulence in
The Starry Night - April, 2019
-
Time-reversal violation may explain abundance of matter over antimatter, physicist says
- April, 2019
-
Getting a big look at tiny particles
- April, 2019
-
Can the scientist play a role in the laws of physics?
- January, 2019
- The
quantum heretics - December, 2018
-
Quantum foundations still not cemented
- November, 2018
-
Study finds flaw in emergent gravity
- August, 2018
-
Quantum stopwatch stores time in a quantum memory
- June, 2018
-
Galileo's free-falling objects experiment passes space test further proving
equivalence principle - December, 2017
-
Experiment shows that arrow of time is a relative concept, not an absolute one
- December, 2017
-
Relativity Survives Scrutiny, Again
- November, 2017
-
Violation of the exponential decay law discovered in open quantum systems
- October, 2017
-
Plug-and-Play Photon Source
- August, 2017
-
Graphene Helps Catch Light Quanta
- August, 2017
-
Quantum superposition still adds up in three-slit experiment
- August, 2017
-
Measuring the Tidal Force on a Particle.F爾s Matter Wave
- May, 2017
-
Physicists breeding Schroedinger cat states
- May, 2017
-
Shedding light (and dark) on quantum probabilities
- April, 2017
-
Atomic clocks make best measurement yet of relativity of time
- March, 2017
-
Optical clocks hit the road,
Transportable Clocks Move with the Times
- February, 2017
-
Cryogenic test probes Einstein's equivalence principle, general relativity, and spacetime 'foam'
- January, 2017
-
Still no violation of Lorentz symmetry, despite strongest test yet
- December, 2016
-
Dual optical clock races towards peak precision - December, 2016
-
Ghost images taken using pairs of atoms
- December, 2016
-
Quantum membranes for ultraprecise mechanical measurements
- December, 2016
-
Weak-value-based metrology surpasses classical limit
- December, 2016
-
Exotic insulator may hold clue to key mystery of modern physics
- December, 2016
-
Quantum Gravity's Time Problem - December, 2016
-
Cosmic experiment is closing another Bell test loophole
- December, 2016
-
Nobody Has Proved Einstein Wrong About Relativity, But People Are Still Trying
- November, 2016
-
Synchronizing optical clocks to one quadrillionth of a second
- October, 2016
-
JILA's superradiant laser may one day boost atomic clocks
- October, 2016
-
Cause and Effect Doesn't Actually Exist on a Particle Level
- October, 2016
-
Special relativity helps keep a secret for 24 hours
- October, 2016
-
Optical link connects atomic clocks over 1400 km of fibre - August, 2016
-
Entangled Hawking radiation spotted in analogue black hole - August, 2016
-
Towards a nuclear clock - July, 2016
-
A new, exquisitely precise determination of Planck's constant - July, 2016
-
A Relativistic View of a Clumpy Universe - June, 2016
-
The freest of free falls,
Paving the Way to Space-Based
Gravitational-Wave Detectors
- June, 2016
-
Experimental test verifies Heisenberg's measurement uncertainty principle
- June, 2016
-
Relativity Gets Thorough Vetting from LIGO - May, 2016
-
Schrodinger's cat lives and dies in two boxes at once
- May, 2016
-
Position Detector Approaches the Heisenberg Limit
- May, 2016
-
Attracting New Ideas for Measuring to Big G - May, 2016
-
Deep space experiment could measure the gravitational constant with
nearly 1,000 times improvement in accuracy (Update) - May, 2016
-
Could optical clocks redefine the length of a second?
- May, 2016
-
Tiny optical frequency clock measures time accurately to 270 quintillionths
of a second - May, 2016
-
Next Generation Clock Networks
- May, 2016
-
Physicists make first observation of the pushing pressure of light
- May, 2016
-
Physicists discover a new form of light
- May, 2016
-
One-Way Quantumness
- April, 2016
-
A Single-Level Electron Turnstile
- April, 2016
-
Scientists take next step towards observing quantum physics in real life
- April, 2016
-
Better tests for Schrodinger cats
- April, 2016
-
The 'great smoky dragon' of quantum physics,
Delayed-choice gedanken experiments and their realizations
- March, 2016
-
1921 NY Times | Catching Einstein in an Error
- March, 2016
-
How to build a time machine - February, 2016
-
Freefall space cubes are test for gravitational wave spotter
- February, 2016
-
Gravity on the balance - February, 2016
-
Physicists investigate the structure of time, with implications for
quantum mechanics and philosophy - February, 2016
-
Journey from Classical to Quantum in Two Dimensions
- February, 2016
-
Black Holes
- February, 2016
-
Quantum Links in Time and Space May Form the Universe's Foundation
- February, 2016
-
Underground ring lasers will put general relativity to the test
- January, 2016
-
Testing General Relativity in a Black Hole's Shadow
- January, 2016
-
Closing the Door on Einstein and Bohr's Quantum Debate
- December, 2015
-
The quantum source of space-time
- November, 2015
-
Arch and scaffold: How Einstein found his field equations
- November, 2015
-
Testing Gravity On Solar System Scales
- November, 2015
-
On the Anniversary of Two Scientific Revolutions - November, 2015
-
A Century Ago, Einstein's Theory of Relativity Changed Everything
- November, 2015
Albert Einstein and Relativity in the Pages of The (NY) Times
- November, 2015
-
Researcher's work offers more proof of Einstein's general theory of relativity
- November, 2015
-
New law implies thermodynamic time runs backwards inside black holes
- November, 2015
-
Physicists make first observation of the pushing pressure of light
- November, 2015
-
How Politics Shaped General Relativity
- November, 2015
-
New derivation of pi links quantum physics and pure math
- November, 2015
-
Nuclear Spin Points out
Arrow of Time - November, 2015
-
Einstein's Biggest Triumph: A Century of General Relativity (Op-Ed)
- November, 2015
-
The Light-Beam Rider
- October, 2015
-
Standing the Test of Time (and Space) - October, 2015
-
Self-interfering clock - October, 2015
-
A Schrodinger's cat
-type effect entangles collective excitations in a semiconductor nanostructure
- October, 2015
-
Putting Quantum Systems to Work - October, 2015
-
Landmarks - Superconductor Quantizes Magnetic Field
- October, 2015
-
Chasing Wormholes: The Hunt for Tunnels in Space-Time
- October, 2015
-
Sorry, Einstein. Quantum Study Suggests 'Spooky Action' Is Real
- October, 2015
-
General Relativity: 100 Years Old And Still Full Of Surprises
- October, 2015
-
Squeezing mechanical motion - October, 2015
-
Perfectly accurate clocks turn out to be impossible - October, 2015
-
Most precise test of Lorentz symmetry for the photon finds that the speed of
light is indeed constant - September, 2015
-
New law implies thermodynamic time runs backwards inside black holes
- September, 2015
-
Could 'Schrodinger's bacterium' be placed in a quantum superposition?
- September, 2015
-
Testing Relativity with Planetary Motion
- September, 2015
-
More evidence to support quantum theory's "spooky action at a distance"
- August, 2015
-
What Has Quantum Mechanics Ever Done For Us?
- August, 2015
-
Tiny black holes could trigger collapse of universe - except that they don't
- August, 2015
-
Tiny particles dance around each other in near-zero gravity
- August, 2015
-
Plan for supersized entanglement is unveiled by physicist
- August, 2015
-
Gravity: Wanna be quantum - July, 2015
-
Time-symmetric formulation of quantum theory provides new understanding of
causality and free choice - July, 2015
-
"Psi" in the sky - July, 2015
-
Quantum Cheshire Cat effect may be explained by standard quantum mechanics
- July, 2015
-
Magic moments with John Bell
- July, 2015
-
New method of quantum entanglement vastly increases how much information can
be carried in a photon - July, 2015
-
Energy Boost from Black Holes - July, 2015
-
Six Things Everyone Should Know About Quantum Physics - July, 2015
-
Gravitational Lensing (Fermilab video) - June, 2015
-
Why the Big Bang's Light May Have a Tilt
- June, 2015
-
Researchers find the macroscopic Brownian motion phenomena of self-powered
liquid metal motors - June, 2015
-
The challenge of building a better atomic clock and why it matters
- June, 2015
-
Does time dilation destroy quantum superposition?,
Relativity's time dilation may limit the quantum world,
How gravity kills Schrodinger's cat - June, 2015
-
When science gets ugly -the story of Philipp Lenard and Albert Einstein
- June, 2015
-
Einstein saves the quantum cat
- June, 2015
-
Getting the measure of matter
- June, 2015
-
Second thoughts: Is a tiny addition in time too much?
- June, 2015
-
Hyper-precise atomic clocks face off to redefine time
- June, 2015
-
Do atoms going through a double slit "know" if they are being observed?
- May, 2015
-
Cavity with Iron Nuclei
Slows Down X Rays - May, 2015
-
Quantum physics: What is really real? - May, 2015
-
Fighting for time - May, 2015
-
Quantum Darwinism, classical reality, and the randomness of quantum jumps
- May, 2015
-
Squeezed quantum cats - May, 2015
-
Quantum physics on tap: Nano-sized faucet offers experimental support for
longstanding quantum theory
- May, 2015
-
Dark Matter Is Necessary For The Origin Of Life
- April, 2015
-
Einstein's Dice and Schrodinger's Cat - Book Review, New York Times,
May 4, 2015
-
Examining Einstein - precise experiments using lasers in space
- April, 2015
-
Why do measurements of the gravitational constant vary so much?
- April, 2015
-
About time: New record for atomic clock accuracy
- April, 2015
-
An ultrafast camera films light at light speed - April, 2015
-
Matter-wave metrology meets cavity optics - April, 2015
-
Absence of gravitational-wave signal extends limit on knowable universe
- Fermilab Today, April 9, 2015
-
Our Cosmic Selves - April, 2015
-
Our flat universe - April, 2015
-
Better 'cosmic candles' to illuminate dark energy
- April, 2015
-
ALMA sees Einstein ring in stunning image of lensed galaxy
- April, 2015
-
Balls and feathers - April, 2015
-
Physicists propose method to measure variations in the speed of light
- April, 2015
-
When quantum mechanics and international relations collide
- March, 2015
-
New way to calculate how long it would take to fall through a hole
in the Earth - March, 2015
-
A stellar source of lithium - March, 2015
-
Team finds `tipping point' between quantum and classical worlds
- March, 2015
-
Quantum experiment verifies Einstein's `spooky action at a distance'
- March, 2015
-
Have alien civilizations built cosmic accelerators from black holes?
- March, 2015
-
Confirming Einstein, scientists find `spacetime foam' not slowing
down photons from faraway gamma-ray burst - March, 2015
-
Shining an X-Ray torch on quantum gravity
- March, 2015
-
Detection of mini black holes at the LHC could indicate parallel universes
in extra dimensions - March, 2015
-
Cold Atoms, Meet Flux Quanta
- March, 2015
-
Loophole in theory offers insight into the 'lithium problem'
- March, 2015
-
Einstein's most famous equation - March, 2015
-
Superconductors Could Help Physicists Find `Gravity Particles'
- March, 2015
-
Nanospheres cooled with light to explore the limits of quantum physics
- March, 2015
-
Quantum gravity: Spacetime fuzziness in focus
- March, 2015
-
Did We Really See Light Acting as a Particle and a Wave at Once?
- March, 2015
-
Gravitational lensing creates 'Einstein's cross' of distant
supernova - March, 2015
-
The dark side of cosmology - March, 2015
-
Quantum Particles Spotted in Less Time - March, 2015
-
Cavity gravimetry - March, 2015
-
Neutrino Test of Lorentz Invariance - March, 2015
-
Quasar spectrum shines a new light on unchanged fundamental constants
- February, 2015
-
A Casimir Effect Caused by Gravity - February, 2015
-
Quantum Mechanics Could
Improve Radar - February, 2015
-
Big Bang, Deflated? Universe May Have Had No Beginning - February, 2015
-
The Reality of Quantum Weirdness - February, 2015
-
General Relativity's Big Year? - February, 2015
-
Disorder Rules the Universe - February, 2015
-
Researchers describe the wavefunction of Schroedinger's cat - February, 2015
-
Quantum Bending of Light
- February, 2015
-
Schrodinger's cat gets a reality check - February, 2015
-
Quantum mechanical behaviour at the macroscale - February, 2015
-
Quantum computer as detector shows space is not squeezed - January, 2015
-
Scientists set quantum speed limit - January, 2015
-
Black holes do not exist where space and time do not exist, says new theory
- January, 2015
-
Nailing the half-life of iron-60 - January, 2015
-
Speed of light not so constant after all - January, 2015
-
Werner Heisenberg and Carl Friedrich Freiherr von Weizsacker: A Fifty-Year
Friendship - January, 2015
-
Albert Einstein's Magic Mountain: An Aarau Education
- January, 2015
-
"Galileo's Machine": Late Notes on Free Fall, Projectile Motion, and the
Force of Percussion (ca. 1638 - 1639) - December, 2014
-
Quantum physics just got less complicated - December, 2014
-
Motion of two electrons in helium atom can be imaged and controlled with
attosecond-timed laser flashes - December, 2014
-
New technique nails distance to supermassive black hole,
A geometrically determined distance to a far-off black hole - December, 2014
-
New revelations on dark matter and relic neutrinos - December, 2014
-
Science powerhouses unite to help search for gravitational waves - December, 2014
-
Heisenberg's uncertainty principle and Wi-Fi - November, 2014
-
How Gravity Explains Why
Time Never Runs Backward - November, 2014
-
Plasmons convert light into a voltage - November, 2014
-
Extragalactic Rydberg atoms - November, 2014
-
Arrow of Time Emerges in a Gravitational System - November, 2014
-
Dusting off the Cosmic-Gravitational-Wave signal
- November, 2014
-
The rise of astrostatistics - November, 2014
-
A quantum world arising from many ordinary ones - October, 2014
-
Rydberg atoms: Two to tango - October, 2014
-
When parallel worlds collide, quantum mechanics is born
- October, 2014
-
A Shield for Rydberg Atoms - October, 2014
-
The Strangest Theory We Know Is True - October, 2014
-
Superposition revisited: Proposed resolution of double-slit experiment paradox
using Feynman path integral formalism - October, 2014
-
Experiment makes Schrodinger's cat choose -things can be real, or certain, but not both
- September, 2014
-
The Franck-Hertz Experiments, 1911 - 1914 Experimentalists in Search of a
Theory - September, 2014
-
One Very Cold Atom - September, 2014
-
Researchers developing one of the world's most accurate methods for generating a specified
number of photons - September, 2014
-
Kilogram celebrates its 125th birthday - September, 2014
-
Quantum tornadoes in a nanodroplet - September, 2014
-
Curvy Photon Trajectories Could Be Detectable,
Photons weave their way through a triple slit - September, 2014
-
Diamond and Silicon
Get Entangled - September, 2014
-
Uncovering the forbidden side of molecules - September, 2014
-
Relativity is Right on Time, Again - September, 2014
-
'Solid' light could compute previously unsolvable problems
- September, 2014
-
Fluid mechanics suggests alternative to quantum orthodoxy
- September, 2014
-
A more fundamental International System of Units - September, 2014
-
The Expanding Universe: Dark Energy - September, 2014
-
The search for Newton's constant - September, 2014
-
The Dayside : Rutherford, Bohr, and the rise of Nature - September, 2014
-
What time is it in the universe? - August, 2014
-
Picturing Schrodinger's cat: Quantum physics enables revolutionary imaging method - August, 2014
-
Duality principle is 'safe and sound': Researchers clear up apparent violation of wave-particle duality
- August, 2014
-
Do we live in a 2-D hologram?,
A physics experiment might soon tell us if we're living in a 2D hologram
- August, 2014
-
The Smallest Possible Scale in the Universe - August, 2014
-
Quantum Particles Take the Road Most Traveled - August, 2014
-
Particle Measurement Sidesteps the Uncertainty Principle
- August, 2014
-
The Quantum Cheshire Cat: Can neutrons be located at a different place than their own spin?
- July, 2014
-
New correction to speed of light could explain SN1987 neutrino burst,
Apparent
correction to the speed of light in a gravitational potential - July, 2014
-
Paradoxical pigeons are the latest quantum conundrum,
- Physicists discuss quantum pigeonhole principle - July, 2014
Direct Test of Cosmic Acceleration - July, 2014
Test of equivalence principle searches for effects of spin-gravity coupling
- July, 2014
Physicist suggests speed of light might be slower than thought - July, 2014
Particle, meet wave: Optical qubit technique squeezes photons to bridge discrete
and continuous quantum regime - July, 2014
Entanglement between particle and wave-like states of light resembles
Schrodinger's cat experiment (Update) - July, 2014
Entangled clocks could provide accurate world time standard
- July, 2014
Optomechanical Sensing of Spontaneous Wave-Function Collapse
- July, 2014
Still Exerting a Hold on Science - June, 2014
Space-based experiment could test gravity's effects on quantum entanglement
- May, 2014
Sending entangled beams through fast-light materials - May, 2014
A quantum accelerometer is being built for navy submarines - May, 2014
Research team claims to have accurately 'teleported' quantum information ten feet
- May, 2014
Scientists discover how to turn light into matter after 80-year quest - May, 2014
Free Falling Matter Waves - May, 2014
Tricking the uncertainty principle - May, 2014
Physicist
suggests some types of wormholes may stay open long enough to send a photon through
- May, 2014
Time's Arrow Traced to Quantum Source - April, 2014
Liquid spacetime: A very slippery superfluid, that's what spacetime could be like
- April, 2014
Light Nearly Stopped in a Waveguide - April, 2014
First discovery of double star that brightens during eclipse - April, 2014
Reflecting on an Alternative Quantum Theory - April, 2014
Thermodynamics Confronts Quantum Mechanics
- April, 2014
Philosopher untangles Einstein senility controversy - April, 2014
Can you drive fast enough to avoid being clocked by speed cameras? - March, 2014
QBism puts the scientist back into science - March, 2014
Be here now
- March, 2014
Relativity shakes a magnet - March, 2014
Certainty about quantum uncertainty - March, 2014
Fundamental constants: The teamwork of precision - February, 2014
Einstein's lost theory uncovered - February, 2014
The standard model's greatest triumph
- February, 2014
The Dark Matter Poltergeist
- February, 2014
Accuracy of the NPL caesium fountain clock further improved
- February, 2014
An analysis of Einstein's 1931 paper featuring a dynamic model of the universe,
Einstein's conversion from a static to an expanding universe - February, 2014
Black hole bombs: Are they dark matter in disguise? - February, 2014
Optical-lattice clock sets new standard for timekeeping - February, 2014
Stephen Hawking: 'There are no black holes',
Grey is the new black hole: is Stephen Hawking right? - January, 2014
Einstein's curve ball - January, 2014
Coming soon: Rydberg the movie - January, 2014
Don't stop the quest to measure Big G - January, 2014
New value for the Planck constant may hasten electronic kilogram
- January, 2014
Quantum-to-classical transition may be explained by fuzziness of measurement
references - January, 2014
Why Einstein will
never be wrong - January, 2014
Towards perfect control of light waves - January, 2014
Pulsar and companions will put general relativity to the test
- January, 2014
Smooth or grainy? New paper reviews research on the grain of space-time
- December, 2013
Astronomers discover furthest gravitational lens
- December, 2013
Tales of 1001 Atoms
- December, 2013
How hypergravity impacts electric arcs - December, 2013
New work gives credence to theory of universe as a hologram - December, 2013
In a "Rainbow" Universe Time May Have No Beginning - December, 2013
Collapse of the universe is closer than ever before - December, 2013
What Can we Say about
a Photon's Past? - December, 2013
Expanding universe can emerge in remarkably simple way, scientists say
- December, 2013
Creation of entanglement simultaneously gives rise to a wormhole
- December, 2013
Teaching matter waves new tricks: Making magnets with ultra cold atoms
- November, 2013
Discrepancy in Neutron Lifetime Still Unresolved - November, 2013
No qualms about quantum theory - November, 2013
Teaching matter waves new tricks: Making magnets with ultracold atoms
- November, 2013
Physicists ask photons 'Where have you been?' - November, 2013
Physicists reveal a quantum Cheshire cat - November, 2013
Seeing a photon without absorbing it - November, 2013
Relativity revives quantum secrecy scheme - November, 2013
Uncertainty reigns over Heisenberg's measurement analogy - November, 2013
Can an oil bath solve the mysteries of the quantum world? - November, 2013
Rescuing Heisenberg - October, 2013
A Tripod of Light - October, 2013
What's Inside a Black Hole's
Horizon? - October, 2013
Testing times for
relativity - October, 2013
Hairy black hole could show gaps in Einstein's theory - October, 2013
Rescuing Heisenberg - October, 2013
Physicists prove Heisenberg's intuition correct - October, 2013
Feynman wasn't joking: Modeling quantum dynamics with ground state wavefunctions
- October, 2013
Rethinking particle dynamics - October, 2013
A Jewel at the Heart of Quantum Physics - September, 2013
Quantum quest - September, 2013
A startling value for gravitation - September, 2013
Cross-Country Time Keeping - September, 2013
Can't Beat These New Clocks - September, 2013
Classical vs Quantum - September, 2013
An Uncertain Big G - September, 2013
Quantum steps towards the Big Bang - September, 2013
Iron in the sun: A greenhouse gas for X-ray radiation
- September, 2013
Theorists bridge space-time rips - September, 2013
Quantum inverted pendulum: Control scheme dynamically maintains unstable
quantum system - August, 2013
Star's flicker reveals its surface gravity - August, 2013
Ultracold Big Bang experiment successfully simulates evolution of early
universe - August, 2013
Physicist disentangles "Schrodinger's cat" debate - August, 2013
Theory of Einstein's Proved Right - Again - August, 2013
Another close look at "big G" - August, 2013
Physicist proves impossibility of quantum time crystals
- August, 2013
NIST ytterbium atomic clocks set record for stability - August, 2013
Big Bang Light Reveals Minimum Lifetime of Photons - August, 2013
Black Holes + Wormholes = Quantum Answers - August, 2013
Closing in on Einstein's window to the universe - August, 2013
Faster Than the Speed of Light? - July, 2013
Experimental quest to test Einstein's speed limit,
Testing Relativity Using Earth's Motion
- July, 2013
When fluid dynamics mimic quantum mechanics - July, 2013
A proper understanding of the Davisson and
Germer experiments for undergraduate modern physics course - July, 2013
What if quantum physics worked on a macroscopic level? - July, 2013
Attractive force arises from black-body radiation, say physicists
, Blackbody radiation induces attractive force stronger than gravity - July, 2013
Gravity Makes the Universe
Classical - July, 2013
Fundamental Constant Doesn't Budge in High Gravity - July, 2013
A Distant Second - June, 2013
A cloak in time - June, 2013
Niels Bohr between physics and chemistry - May, 2013
General relativity passes a new test - May, 2013
Photons test quantum paradox - April, 2013
Black
holes, quantum information, and the foundations of physics - April, 2013
Edmund Stoner and the Bohr atom - April, 2013
Getting around the 'uncertainty principle': Physicists make first direct measurements of polarization states
of light - March, 2013.
In praise of weakness - March, 2013
1932, a watershed year in nuclear physics - March, 2013
Back to the beginning of quantum spacetime - March, 2013
Black hole found spinning near the relativistic limit - February, 2013.
Free-Falling Interferometry
- February, 2013.
Playing quantum tricks with
measurements - February, 2013.
Quantum physics mimics spooky action into the past - April, 2012.
Are you certain, Mr. Heisenberg? New measurements deepen understanding of quantum uncertainty
- January, 2012.
Neutrons revive Heisenberg's first take on uncertainty
- January, 2012
Sun puts relativity to the test
- September, 2011.
Time Travel without Regrets
- February, 2011.
Relativity starts your car and
Relativity Powers Your Car
Battery - January, 2011.
Relativity comes down to Earth,
Relativity with a human touch - September, 2010.
Einstein, Bohr, And Ultimate Reality - August, 2010.
7.3 Billion Years Later, Einstein's Theory Prevails - November, 2009.
A 21st century Rutherford experiment - November, 2009.
Quantum Mechanics: Do the Wave-particle - June, 2009.
Exerting Better Control Over Matter Waves - March, 2009.
Physicists Create Millimeter-sized 'Bohr Atom' -
March, 2009
and June, 2008
New Insights Into Quantum Mechanics: Unlocking Mysteries
Of 'Blinking' Phenomena Of Fluorescent Molecules - July, 2008.
Optical Clocks Get Better - April, 2008.
Short Light - March, 2008.
Unprecedented Spectroscopy Using the Best Ever Ruler for Light
- January, 2008.
High-Intensity Photoelectric Effect - December, 2007.
Relativistic Thermodynamics - October, 2007.
Time and
Time Again - June, 2007.
The
Shortest Light Pulse Ever - May, 2007.
Slowed
Light Handed Off - February, 2007.
Einstein's Little Machine - September, 2006.
Existence
of Atoms Reaffirmed - June, 2006.
Best
Direct Test of E=mc2 - January, 2006.
Superluminal Ultrasound? - October, 2005.
Why Do We
Reside in a Three-Dimensional Universe? - September, 2005.
Fibres Control
the Speed of Light - August, 2005.
Light
May Arise From Tiny Relativity Violations - June, 2005.
The First
Direct Measurement of Recoil Momentum - May, 2005.
First
Evidence For Entanglement of Three Macroscopic Objects - March, 2005.
New Look for
Classic Experiment - March, 2005.
Evidence for
Quantized Displacement - February, 2005.
Looking at
Electrons Without Touching - January, 2005.
Is
Special Relativity Wrong? - December, 2004.
Good
News for Causality - November, 2004.
Pionium Atoms Arrive en Masse - October, 2004.
Clock
Synchronization With Entangled Photons - September, 2004.
The
World's Smallest Atomic Clock - September, 2004.
Newly
Created Antihydrogen Atoms - August, 2004.
Light
Wave Outlasts Itself - May, 2004.
ASACUSA
Enters a New World of Precision - May, 2004.
A
Tiny Solar System After All - April, 2004.
Physicists
Move Closer to the Quantum Limit - April, 2004.
Switching light on and off - December, 2003.
Super-cool detector spots single photons October - , 2003.
Biomolecule behaves like a wave - September, 2003.
The Relativity of Time - September, 2003.
Malleability of Spacetime - September, 2003.
Light-Speed Submarine - July, 2003.
Lorentz Symmetry Stays Intact - March, 2003.
A New Limit on Photon Mass - February, 2003.
Lorentz Violations? Not Yet - February, 2003.
Topics pre-2003
Although the actual material covered in the
course ends in 1925 with the birth of quantum mechanics,
the various topics are still "living" issues in the sense that scientists
continue to ponder and probe the foundations
of relativity and quantum theory. The following is just a sampling
of "web-accessable" papers
from the arXiv
e-print archive.
[Be warned that these are NOT refereed papers so some of the
conclusions reached here could be,
and probably are, utter nonsense.]
-
Resolving starlight:
a quantum perspective - June, 2019
-
Lorentz-symmetry test at
Planck-scale suppression with nucleons in a spin-polarized 133Cs cold
atom clock - December, 2016
-
Sound clocks and sonic
relativity - December, 2016
-
Shadows over the speed of light
- June, 2016
-
Relativistic transformation of
temperature and Mosengeil-Ott's antinomy - June, 2016
-
Relativistic
mechanical-thermodynamical formalism -- description of inelastic collisions
- June, 2016
-
Unification of Relativistic and
Quantum Mechanics from Elementary Cycles Theory - June, 2016
-
Gravity Tunnel Drag
- June, 2016
-
Nancy Cartwright and the
Measurement Problem - June, 2016
-
The Development of
Elementary Quantum Theory from 1900 to 1927 - June, 2016
-
Personal recollections:
Frascati and the search for gravitational waves at the Istituto Nazionale di
Fisica Nucleare (INFN) - April, 2016
-
Uncertain for A Century:
Quantum Mechanics and The Dilemma of Interpretation - April, 2016
-
Single-Ion Atomic Clock
with 3 X 10-18 Systematic Uncertainty
- February, 2016
-
A tabulation of the
bound-state energies of atomic hydrogen - January, 2016
-
Quantum Dynamical
Relativity and the Nature of Spacetime - July, 2015
-
Prospects for atomic clocks based on large ion crystals - July, 2015
-
Can the time arrow
be influenced by the dark energy? - June, 2015
-
Comments On: A
Universe From Nothing - May, 2014
-
Communicating the
Heisenberg uncertainty relations: Niels Bohr, Complementarity and the
Einstein-Rupp experiments - May, 2015
-
How superluminal
motion can lead to backward time travel - May, 2015
-
Matter-wave laser
Interferometric Gravitation Antenna (MIGA): New perspectives for fundamental
physics and geosciences
- May, 2015
-
Subtleties of
the clock retardation - May, 2015
-
Comment on
"Measurements of Newton's gravitational constant and the length of day"
- May, 2015
-
Greeks were right:
critical comments on Qbism - May, 2015
-
Yet another time
about time - May, 2015
-
The causal
structure of Minkowski space time: possibilities and impossibilities
of secure positioning - May, 2015
-
Recent measurements
of the gravitational constant as a function of time - May, 2015
-
No information
or horizon paradoxes for Th. Smiths - May, 2015
-
Is Time's Arrow
Perspectival? - May, 2015
-
Absence of
Observed Unspeakably Large Black Holes Tells Us the Curvature of Space
- May, 2015
-
A General
Quadrature Solution for Relativistic, Non-relativistic, and
Weakly-Relativistic Rocket Equations - April, 2015
-
Two New
Variations on the Twin Pseudoparadox - April, 2015
-
Editorial for
the Special Issue 100 Years of Chronogeometrodynamics: The Status of
the Einstein's Theory of Gravitation in Its Centennial Year
- April, 2015
-
Cosmological
Tests of Gravity - April, 2015
-
Einstein's
Uniformly Rotating Disk and the Hole Argument - April, 2015
-
Milestones of
general relativity: Hubble's law (1929) and the expansion of the universe
- April, 2015
-
Angular Momentum
Operators from Quantized SO(3) - April, 2015
-
Relativistic
Paradoxes and Lack of Relativity in Closed Spaces
- April, 2015
-
The contribution
of Giordano Bruno to the special principle of relativity
- April, 2015
-
Emergent Spacetime:
Reality or Illusion? - April, 2015
-
Correlative methods
for dual-species quantum tests of the weak equivalence principle
- March, 2015
-
The Warped Science
of Interstellar - March, 2015
-
Lemaitre's Big Bang
- March, 2015
-
Einstein's
cosmology review of 1933: a new perspective on the Einstein-de Sitter model
of the cosmos - March, 2015
-
The Collaboration
of Mileva Maric and Albert Einstein - March, 2015
-
Jerk and Hyperjerk
in a Rotating Frame of Reference - March, 2015
-
Tachyon Physics with
Trapped Ions - March, 2015
-
A Machian Version of
Einstein's Variable Speed of Light Theory - March, 2015
-
Limits and Signatures
of Relativistic Spaceflight - March, 2015
-
A Non-isothermal Theory
for Interpreting Sodium Lines in Transmission Spectra of Exoplanets
- March, 2015
-
Deriving time
from the geometry of space - January, 2015
-
Search for Lorentz
violation in short-range gravity - December, 2014
-
Systematic
evaluation of an atomic clock at 2e-18 total uncertainty
- December, 2014
-
Which is the Quantum
Decay Law of Relativistic Particles? - December, 2014
-
Constraining Extra Space
Dimensions using Precision Molecular Spectroscopy - March, 2015
-
On the Existence of
Spacetime Structure - March, 2015
-
Experiment and theory:
the case of the Doppler effect for photons - February, 2015
-
Newton's second law:
not so elementary (as it may seem) - February, 2015
-
Energy-Momentum Tensors
and Motion in Special Relativity - February, 2015
-
Bringing Bell's theorem
back to the domain of Particle Physics & Cosmology - February, 2015
-
Ehrenfest's adiabatic
hypothesis in Bohr's quantum theory - February, 2015
-
Reading QBism: A Reply
to Nauenberg - February, 2015
-
A structural theory of
everything - February, 2015
-
Direct calculation of
length contraction and clock retardation - January, 2015
-
The Hydrogen Atom: a Review
on the Birth of Modern Quantum Mechanics - January, 2015
-
Planck's constant measurement
for dummies - January, 2015
-
Testing General Relativity
with Present and Future Astrophysical Observations - January, 2015
-
A summary of the Planck
constant measurements using a watt balance with a superconducting solenoid at NIST
- January, 2015
-
Einstein and Besso: from
Zurich to Milano - December, 2014
-
Direct Terrestrial Measurement
of the Spatial Isotropy of the Speed of Light to 10-18 - December, 2014
-
Macroscopic superpositions
and gravimetry with quantum magnetomechanics - December, 2014
-
Epistemological and
Ontological Paraconsistency in Quantum Mechanics: For and Against Bohrian Philosophy
- December, 2014
-
On a fatal error in
tachyonic physics - December, 2014
-
Acceleration effects on
atomic clocks - December, 2014
-
Quantum Darwinism,
Classical Reality, and the Randomness of Quantum Jumps - December, 2014
-
Sensing Short-Range Forces
with a Nanosphere Matter-Wave Interferometer - December, 2014
-
Quantum Measurement and
the Paulian Idea - December, 2014
-
The necessity of the
second postulate in special relativity - December, 2014
-
Primordial Black
Holes as Heat Sources for Living Systems with Longest Possible Lifetimes
- December, 2014
-
Robust entanglement-based
magnetic field sensor beyond the standard quantum limit - December, 2014
-
Probing the Constituent
Structure of Black Holes - December, 2014
-
Is Bohr challenge still
relevant? - December, 2014
-
A Michelson-Morley Test
of Lorentz Symmetry for Electrons - December, 2014
-
Einstein and the Formal
Equivalence of Mass and Energy - December, 2014
-
The four particles paradox
in special relativity - December, 2014
-
Did Einstein "Nostrify"
Hilbert's Final Form of the Field Equations for General Relativity?
- December, 2014
-
Photons that travel in free
space slower than the speed of light - November, 2014
-
Voigt's transformations and the
beginning of the relativistic revolution
- November, 2014
-
Time as a stochastic process
- November, 2014
-
Quantum Nonlocality Explained
- November, 2014
-
Why the wave function, of
all things? - November, 2014
-
On MOND, extended gravity
and non-geodesic motion - November, 2014
-
Magnetic-dipole transitions
in highly-charged ions as a basis of ultra-precise optical clocks
- November, 2014
-
Visual appearance of wireframe
objects in special relativity - October, 2014
-
Curved spacetimes in the lab
- October, 2014
-
Comment on: Observation of a
quantum Cheshire Cat in a matter-wave interferometer experiment - October, 2014
-
On the analogy of
quantum wave-particle duality with bouncing droplets - October, 2014
-
Appearing Out of Nowhere:
The Emergence of Spacetime in Quantum Gravity - October, 2014
-
Testing the limits of
quantum mechanical superpositions - October, 2014
-
Royal Observatory of
Belgium Gravitational balance - September, 2014
-
Test of Time Dilation Using
Stored Li+ Ions as Clocks at Relativistic Speed - September, 2014
-
The 1919 measurement of the
deflection of light - September, 2014
-
A Generalization of Gravity
- September, 2014
-
On measurement of the
isotropy of the speed of light - September, 2014
-
A quantum of history
- September, 2014
-
Foucault's method in new
settings - September, 2014
-
On Historical Background
to the Ontic Breakthrough.I Polemic Defense of Quantum Reality
- September, 2014
-
QBism: A Critical Appraisal
- September, 2014
-
Decay Law of Relativistic
Particles: Quantum Theory Meets Special Relativity
- August, 2014
-
Measurement of the Velocity
of the Neutrino with MINOS - August, 2014
-
The spheronic toy universe:
how special relativity may be visualized to emerge from a wave-nature of matter
- August, 2014
-
Tests of Lorentz symmetry in
single beta decay - August, 2014
-
The Function of the Second
Postulate in Special Relativity - August, 2014
-
Energy-momentum conservation
and Lipkin's zilch - August, 2014
-
Can negative mass be considered
in General Relativity? - August, 2014
-
Geometric diagram for
relativistic addition of velocities - August, 2014
-
The Euclid space-time diagram
of the theory of relativity - August, 2014
-
Reconstruction of vertical
and L-shaped ancient Egyptian sundials and methods for measuring time
- August, 2014
-
Einstein and Planck on
mass-energy equivalence in 1905-06: a modern perspective - July, 2014
-
Optimization and error model
for atom interferometry technique to measure Newtonian gravitational constant
- July, 2014
-
Matter wave lensing to
picokelvin temperatures - July, 2014
-
Aspects of Complementarity
and Uncertainty - July, 2014
-
A new general relativistic
clock effect for counter-rotating test particles in the gravitoelectric field of
a non-rotating body - July, 2014
-
Gravitomagnetic draconitic
clock effect for inclined and quasi-circular orbits around a spinning body
arbitrarily oriented in space - July, 2014
-
Who creates the Time:
Nature or Human? - July, 2014
-
Improved limit on a
temporal variation of mp/me from comparisons of Yb+ and Cs atomic clocks
- July, 2014
-
Conceptual Preconditions
of Overcoming of Relativistic Intentions in Modern Philosophy of Science
- July, 2014
-
Optical Atomic Clocks
- July, 2014
-
The wave equation in the
birth of spacetime symmetries - July, 2014
-
Didactic derivation of the
special theory of relativity from the Klein-Gordon equation - June, 2014
-
Special Relativity
from the Dynamical Viewpoint - May, 2014
-
Is Time Inhomogeneous?
- April, 2014
-
Quantum Tests of the Einstein
Equivalence Principle with the STE-QUEST Space Mission - April, 2014
-
Constraining the Violation
of Equivalence Principle with IceCube Atmospheric Neutrino Data - April, 2014
-
On a Model of Quantum
Mechanics and the Mind - April, 2014
-
What Do We Know About
Lorentz Invariance? - March, 2014
-
Direct comparison of optical
lattice clocks with an intercontinental baseline of 9000 km - March, 2014
-
Present time
- March, 2014
-
Quantum Theory and Human
Perception of the Macro-World - March, 2014
-
Universal Gravitation as
Lorentz-covariant Dynamics - March, 2014
-
Theoretical Particle
Limiting Velocity From The Bicubic Equation: Neutrino Example - March, 2014
-
Clock Hypothesis of
Relativity Theory, Maximal Acceleration, and M.A授ssbauer Spectroscopy
- March, 2014
-
Reference frames in
classical and relativistic physics - March, 2014
-
Why I am not a QBist
- March, 2014
-
A Medieval Multiverse:
Mathematical Modelling of the 13th Century Universe of Robert Grosseteste
- March, 2014
-
How does light move? -
Determining the flow of light without destroying interference - March, 2014
-
Merging electromagnetism
with space-time metric - February, 2014
-
Einstein's aborted
attempt at a dynamic steady-state universe - February, 2014
-
Are atomic clocks
slowing down? Possible connection between the quantum and the cosmos: A
feasible experimental test of objective realism - February, 2014
-
Particles, waves and
trajectories: 210 years after Young's experiment - February, 2014
-
Can the clicks of the
detectors provide a complete description of Nature? - February, 2014
-
Einstein's cosmological
considerations - February, 2014
-
Heating the coffee by
looking at it. Or why quantum measurements are physical processes
- February, 2014
-
Measurement Uncertainty:
Reply to Critics - February, 2014
-
Quantum Gravity for Dummies
- February, 2014
-
Toward a principle of
quantumness - February, 2014
-
Relativity, the Special
Theory, explained to Children (from 7 to 107 years old) - February, 2014
-
Real-time single-molecule
imaging of quantum interference - February, 2014
-
A 4-vector formalism for
classical mechanics - February, 2014
-
Simple Molecules and Clocks
- February, 2014
-
A steady-state model of
the universe by Albert Einstein - February, 2014
-
Properties of gravity
near the Schwarzschild radius and the cosmological redshift
- February, 2014
-
A Note On Einstein,
Bergmann, and the Fifth Dimension - January, 2014
-
Yet another derivation
of special relativity transformations without the second postulate
- January, 2014
-
Relativistic particle
in the rest frame - January, 2014
-
The Continuum Emission
Spectrum of Hf 2-2 near the Balmer Limit and the ORL versus CEL abundance and
temperature Discrepancy - January, 2014
-
Treating Time Travel
Quantum Mechanically - January, 2014
-
Comment on "Asking
Photons Where Have They Been" - January, 2014
-
Reply to "Comment on 'Asking
Photons Where Have They Been'" - January, 2014
-
A Case for Lorentzian
Relativity - January, 2014
-
Why bouncing droplets are a
pretty good model of quantum mechanics - January, 2014
-
Accelerator experiments
contradicting general relativity - January, 2014
-
Einstein's first gravitational
field equation 101 years later - January, 2014
-
Bending of light caused by
gravitation: the same result via totally different philosophies - January, 2014
-
Optical atomic clocks
- January, 2014
-
On time and space double-slit
experiments - January, 2014
-
A map between Galilean
relativity and special relativity - January, 2014
-
Accelerating the Averaging Rate
of Atomic Ensemble Clock Stability using Atomic Phase Lock - January, 2014
-
Consciousness as a State of Matter
- January, 2014
-
Photon: New light on an old name
- December, 2014
-
QBism as CBism: Solving the Problem
of "the Now" - December, 2013
-
Searching the Internet for evidence
of time travelers - December, 2013
-
The universe as quantum computer
- December, 2013
-
Schwinger's Approach to Einstein's
Gravity, or Einstein vs. Schwinger? Not! - December, 2013
-
Marcel Grossmann and his contribution
to the general theory of relativity - December, 2013
-
Aristotle's Physics: a Physicist's
Look - December, 2013
-
Angular Momentum Exchange
Between Light and Material Media Deduced from the Doppler Shift - December, 2013
-
Radiation Pressure and Photon
Momentum in Negative-Index Media - December, 2013
-
Discrete Spacetime and
Relativistic Quantum Particles - December, 2013
-
The Cosmological Constant
Problem and Re-interpretation of Time - December, 2013
-
Causality in Classical Physics
- December, 2013
-
Einstein's cosmic
model of 1931: a translation and analysis of a forgotten model of the universe
- December, 2013
-
Photoelectron emission
from plasmonic nanoparticles: Comparison between surface and volume
photoelectric effects - December, 2013
-
Klein Paradox in the
Pilot Wave Interpretation - December, 2013
-
Re-Examination of Globally
Flat Space-Time - December, 2013
-
Eight types of physical
"arrows" distinguished by Newtonian space-time symmetry - December, 2013
-
Observed Gravitational
Wave Effects: Amaldi 1980 Frascati-Rome Classical Bar Detectors, 2013
Perth-London Zener-Diode Quantum Detectors, Earth Oscillation Mode Frequencies
- December, 2013
-
Mobile and Remote Inertial
Sensing with Atom Interferometers - November, 2013
-
On a recent preliminary
study for the measurement of the Lense-Thirring effect with the Galileo satellites
- November, 2013
-
Connecting terrestrial to
celestial reference frames - November, 2013
-
Einstein's equivalence
principle in cosmology - November, 2013
-
The reception of
relativity in the Netherlands - November, 2013
-
The Superposition Principle
in Quantum Mechanics - did the rock enter the foundation surreptitiously?
- November, 2013
-
Einstein's conversion from
his static to an expanding universe - November, 2013
-
Annotations regarding the
Oxford Questions - November, 2013
-
The position-momentum
symmetry principle - November, 2013
-
Quantum Trajectories and
Physical Reality of de Broglie's Waves - October, 2013
-
Action at a distance and causality
in quantum theory - October, 2013
-
Relativistic Achilles
- October, 2013
-
Effect of the generalized
uncertainty principle on Galilean and Lorentz transformations - October, 2013
-
A quantum network of clocks
- October, 2013
-
What is the Schwarzschild
radius of a quantum mechanical particle? - October, 2013
-
The GRW flash theory: a
relativistic quantum ontology of matter in space-time? - October, 2013
-
Comment on "Trouble with
the Lorentz Law of Force: Incompatibility with Special Relativity and Momentum
Conservation [arXiv:1205.0096]]"
- October, 2013
-
Time from quantum entanglement:
an experimental illustration - October, 2013
-
Minimal length, maximal momentum
and thermodynamics of black body radiation - October, 2013
-
Searching for a highly unlikely
frame dependent speed of light using a one-way test - October, 2013
-
Non-Inertial Frames in Special and
General Relativity - October, 2013
-
Classical calculation of relativistic
frequency-shifts in an ideal Penning trap - October, 2013
-
What Do Experiments in
Optics tell us about Photon Momentum in Media? - October, 2013
-
A paradox about an atom
and a photon - October, 2013
-
Lorentz Transformation
of Blackbody Radiation - October, 2013
-
On Relativistic
Entanglement and Localization of Particles and on their Comparison with
the Non-Relativistic Theory - October, 2013
-
Einstein and the
conservation of energy-momentum in general relativity - October, 2013
-
Discrete mechanics, time
machines and hybrid systems - October, 2013
-
Measuring general relativity
effects in a terrestrial lab by means of laser gyroscopes - October, 2013
-
On the Relation between the
Psychological and Thermodynamic Arrows of Time - October, 2013
-
The relativity of
space-time-property - October, 2013
-
George Gamow and Albert
Einstein: Did Einstein say the cosmological constant was the "biggest blunder"
he ever made in his life? - October, 2013
-
Lorentz violation in a uniform
newtonian gravitational field
- September, 2013
-
Does Information Have Mass?
- September, 2013
-
Why the length of a quantum
string cannot be Lorentz contracted - September, 2013
-
Trapping light by mimicking
gravitational lensing - September, 2013
-
On first attempts to reconcile
quantum principles with gravity - September, 2013
-
A Search for non-Newtonian
force in a precision measurement of the scattering of slow neutrons in Xenon gas
- September, 2013
-
Using Cosmology to Establish the
Quantization of Gravity - September, 2013
-
Why do Earth satellites stay up?
- September, 2013
-
A tossed coin as
quantum mechanical object - September, 2013
-
Orbital effects
induced by a certain class of modified theories of gravity with nonminimal
coupling between the matter and the metric - September, 2013
-
The genesis of the
quantum theory of the chemical bond - September, 2013
-
Mass, Speed,
Direction: John Buridan's 14th century concept of momentum
- September, 2013
-
Relative motion in
spacetime - September, 2013
-
The many faces of the
Bohr atom - September, 2013
-
Oskar Klein and the
fifth dimension - September, 2013
-
Unified meta-theory of
information, consciousness, time and the classical-quantum universe
- September, 2013
-
Lorenz, G授del and
Penrose: New perspectives on geometry and determinism in fundamental physics
- September, 2013
-
New conceptions on
the light wave theory in a moving frame of reference - September, 2013
-
Da investiga守弱o sobre
a natureza da luz 錫 relatividade especial: notas de aula - September, 2013
-
Physico-mathematical
foundations of relativistic cosmology - September, 2013
-
Laser assisted Compton
scattering of X-ray photons - September, 2013
-
Antiproton low-energy
collisions with Ps-atoms and true muonium atoms ($.1而シ+而シ-)
- September, 2013
-
The High-Energy
Interpretation of Quantum Mechanics - September, 2013
-
Atomism and Relationalism
as guiding principles for Quantum Gravity - September, 2013
-
Bell's spaceship
paradox in electron interferometry - September, 2013
-
Tests of Lorentz
invariance: a 2013 update - September, 2013
-
A New Generation of
Atomic Clocks: Accuracy and Stability at the 10-18 Level
- September, 2013
-
Measurements according
to "Consistent Quantum Theory" - September, 2013
-
Quantum Weak
Measurements and Cosmology - September, 2013
-
A Pedestrian Approach
to the Measurement Problem in Quantum Mechanics - September, 2013
-
Relativistic features
and time delay of laser-induced tunnel-ionization - September, 2013
-
Modern Ives-Stilwell
Experiments At Storage Rings: Large Boosts Meet High Precision
- September, 2013
-
On a Special
Transformation to a Non-Inertial, Radially Rigid Reference Frame
- September, 2013
-
Relativistic effects
on the Richtmyer-Meshkov instability - September, 2013
-
Gravitation,
Equivalence Principle, and Quantum Mechanics (in German)
- September, 2013
-
Atomic clocks: new
prospects in metrology and geodesy - August, 2013
-
Chirped Frequency
Transfer with an accuracy of $10^{-18}$ and its Application to the Remote
Synchronisation of Timescales - August, 2013
-
Observer and Particle
Transformations and Newton's Laws - August, 2013
-
Constraints on Lorentz
Invariance Violation with Fermi-LAT Observations of Gamma-Ray Bursts
- August, 2013
-
Testing Relativity with
High-Energy Astrophysical Neutrinos - August, 2013
-
New dates for the eras of the
universe from the Planck data - August, 2013
-
A Note on Entanglement,
Nonlocality, and Superluminal Signaling - August, 2013
-
Shut up and let me think! Or
why you should work on the foundations of quantum mechanics as much as you please
- August, 2013
-
Foundations of Quantum Gravity:
The Role of Principles Grounded in Empirical Reality - August, 2013
-
Is Interstellar Space Travel
Possible? - August, 2013
-
New subluminal and superluminal
spacetime measures - August, 2013
-
Optomechanical interface for
probing matter-wave coherence - August, 2013
-
Disproving Heisenberg's
error-disturbance relation - August, 2013
-
Torsion-balance probes of
fundamental physics - August, 2013
-
Evidence of entanglement, or:
Is Schr.A授dinger's cat really entangled? - August, 2013
-
Equivalence Principle and Bound
Kinetic Energy - August, 2013
-
A simple minded question: Do we
live in the four-dimensional spacetime? - August, 2013
-
The Fate of the Quantum
- August, 2013
-
Cyclic models of the relativistic
universe: the early history - August, 2013
-
The Dark Mass Problem (Solved?)
- August, 2013
-
A Rosetta Stone for Parameterized
Tests of Gravity - July, 2013
-
Ruler measurements give
space-time-transformation-independent invariant lengths - July, 2013
-
Dispelling the Quantum Spooks -
a Clue that Einstein Missed? - July, 2013
-
Compton Effect in the Medium with
Non-unity Refractive Index - July, 2013
-
Dynamical 3-Space: Gravitational Wave
Detection and the Shnoll Effect - July, 2013
-
Aberration of starlight experiment
- July, 2013
-
Relativistic Quantum Metrology:
Exploiting relativity to improve quantum measurement technologies - July, 2013
-
Testing quantum physics in space
using optically trapped nanospheres - July, 2013
-
Tests of the Lorentz and CPT Symmetries
at the Planck Energy Scale with X-Ray and Gamma-Ray Observations - July, 2013
-
Visualization of a particle's wave
function in the double slits experiment - July, 2013
-
The Perceptual Arrow of Time and
the Sensory Transduction Process - July, 2013
-
A quantum mechanical interpretation
for the relativity of the space-time - July, 2013
-
Gravity-induced phase-shift of light:
outline of an interferometric test of the Equivalence Principle - July, 2013
-
Testing Lorentz Symmetry with the
Double Chooz Experiment - July, 2013
-
Search for neutrino-antineutrino
oscillations with a reactor experiment - July, 2013
-
Lorentz Breaking and Gravity
- July, 2013
-
Probing Physics beyond the Standard
Model with He/Xe clock comparison experiments - July, 2013
-
Testing Lorentz Invariance with a
Double-Pass Optical Ring Cavity - July, 2013
-
Are Micro and Macro Arrows of Time
Connected Each Other? - July, 2013
-
Transformity: The Dependence
of the Laws of Physics on Higher-Dimensional Coordinate Transformations
- July, 2013
-
Einstein's Miraculous Year
- July, 2013
-
Photon in a cavity -- a
Gedankenexperiment - July, 2013
-
Simultaneous Dual-Species Matter-Wave
Accelerometer - July, 2013
-
The 1905 Relativity Paper and the
"Light Quantum" - July, 2013
-
Comparing theories: the dynamics
of changing vocabulary. A case-study in relativity theory - July, 2013
-
Generalized Lorentz
Transformations - July, 2013
-
A new perspective on CP and
T violation - July, 2013
-
On the gravitational redshift
- July, 2013
-
Interferometer design of the KAGRA
gravitational wave detector - June, 2013
-
Constraints on corrections to
Newtonian gravity from two recent measurements of the Casimir interaction between
metallic surfaces - June, 2013
-
Three Merry Roads to T-Violation
- June, 2013
-
Invariance of Spooky Action at a
Distance in Quantum Entanglement under Lorentz Transformation - June, 2013
-
Synchronized clocks and time on a
rotating disc - June, 2013
-
Einstein, the reality of space, and
the action-reaction principle - June, 2013
-
On the Relativity of Cosmological
Expansion and the Physical Constants - June, 2013
-
Einstein's physical geometry at play:
inertial motion, the boostability assumption, the Lorentz transformations, and the so-called
conventionality of the one-way speed of light - June, 2013
-
Rydberg atom detection of the temporal
coherence of cosmic microwave background radiation - May, 2013
-
Relativity violations
and beta decay - May, 2013
-
Energy uncertainty of the
final state of a decay process - May, 2013
-
Fritz Hasenohrl and E = mc2
- March, 2013
-
New prospects and
techniques for matter wave interferometry with ions - March, 2013
-
On Back-reaction in Special Relativity
- March, 2013
-
Limits on Violations of Lorentz Symmetry
and the Einstein Equivalence Principle using Radio-Frequency Spectroscopy of Atomic Dysprosium
- March, 2013
-
I-Love-Q Relations in
Neutron Stars and their Applications to Astrophysics, Gravitational Waves and
Fundamental Physics - March, 2013
-
From aether theory to Special Relativity
- February, 2013
-
The quantum vacuum as the origin of the
speed of light - February, 2013
-
Is a rational explanation of wave-particle
duality possible? - February, 2013
-
I-Love-Q
- February, 2013
-
Attractive Optical Forces from
Blackbody Radiation - February, 2013
-
Is there a "Charge - Magnet Paradox"
- December, 2012
-
Testing Lorentz invariance with neutrino
bursts from supernova neutronization - November, 2012
-
A Relational Concept of Machian Relativity
- July, 2012
-
Comment on "Trouble with the Lorentz Law
of Force: Incompatibility with Special Relativity and Momentum Conservation" - July, 2012
-
Spreading of Ultrarelativistic Wave Packet
and Redshift - July, 2012
-
Time vector defined in imaginary space of
spatial coordinate - July, 2012
-
Gravitomagnetic forces
and quadrupole gravitational radiation from special relativity
- May, 2012
-
Is the aether entrained by the motion of
celestial bodies? What do the experiments tell us? - April, 2012
-
Relativistic quantum
mechanics and relativistic quantum statistics based upon a novel perspective
on relativistic transformation - March, 2012
-
On the formal statement of the special principle
of relativity - September, 2011
-
Hasenohrl and the Equivalence of
Mass and Energy - August, 2011
-
Time-asymmetry of probabilities
versus relativistic causal structure: an arrow of time - August, 2011
-
Hubble's law and faster than light
expansion speeds - July, 2011
-
Elementary Considerations on
the Interpretation of the Foundations of Quantum Mechanics by Albert Einstein, 1953
- July, 2011
-
Quantum magic: A skeptical
perspective - July, 2011
-
What we don't know about time
- July, 2011
-
Einstein's `Z周rich
Notebook' and his Journey to General Relativity
- June, 2011
-
On time-interval
transformations in special relativity - May, 2011
-
Rigid body motion in special
relativity - May, 2011
-
Covariant Uniform Acceleration
and Time Dilation - May, 2011
-
Isotropy of the Speed of Light
- March, 2011
Reply to
"Isotropy of Speed of Light" by Castano and Hawkins
-
Longitudinal light clock and
Lorentz distortions - March, 2011
-
On the experimental determination
of the one-way speed of light - February, 2011
-
The Apparent Velocity and
Acceleration of Relativistically Moving Objects - February, 2011
-
Relativity tests and their
motivation - February, 2011
-
A Sensitive Test of
Mass-Energy Relation - January, 2011
-
The Nature and Origin of
Time-asymmetric Spacetime Structures - December, 2010
-
Phase tuning in Michelson-Morley
experiments performed in vacuum, assuming length contraction - October, 2010
-
Explaining atomic clock behavior
in a gravitational field with only 1905 Relativity - September, 2010
-
A Theoretical Diagnosis
on Light Speed Anisotropy from GRAAL Experiment - September, 2010
-
Testing Lorentz Invariance by
Comparing Light Propagation in Vacuum and Matter - August, 2010
-
Newtonian limit
of Einsteinian gravity: from dynamics of Solar system to dynamics of
stars in spiral galaxies - June, 2010
-
Relativistic Length Agony Continued
- May, 2010
-
The Interpretation of Wave Mechanics
with the help of Waves with Singular Regions - May, 2010
-
Nothing but Relativity,
Redux - May, 2010
-
"Nonrelativistic" Kinematics:
Particles or Waves? - May, 2010
-
Comments on Nonlocality in
Deformed Special Relativity, in reply to arXiv:1004.0664 by Lee Smolin and
arXiv:1004.0575 by Jacob et al - May, 2010
-
What and How does a Michelson
Interferometer Measure? - March, 2010
-
Is the Speed of Light Invariant
or Covariant? - March, 2010
-
The Twin Paradox and the
Principle of Relativity - February, 2010
-
The Invariance of the
Speed of Light - February, 2010
-
Extending Special Relativity
to Superluminal Motion - February, 2010
-
Absolute Motion Determined from
Michelson-type Experiments in Optical Media - February, 2010
-
Unless Connected to Relativity
the First and Second Laws of Thermodynamics are Incompatible - February, 2010
-
Lorentz Transformation
Equations in Galilean Form - February, 2010
-
Lessons from Failures to
Achieve What was Possible in the Twentieth Century Physics - January, 2010
-
Poincare and Relativity: The Logic
of the 1905 Palermo Memoir - January, 2010
-
The Fundamental
Importance of Discourse in Theoretical Physics - January, 2010
-
Spacetime and Matter
- A Duality of Partial Orders - January, 2010
-
Deformation of the
Bodies by the Result of Length Contraction: A new Approach to the Lorentz
Contraction - January, 2010
-
Starships and Spinoza
- January, 2010
-
Beyond the Fundamentals
of Special Relativity: Full Lorentz Gamma Factor - January, 2010
-
Why Gravity is Fundamental - January, 2010
-
Three +1 Faces of Invariance - January, 2010
-
Time, Topology and
the Twin Paradox - October, 2009
-
Suggesting a Very Simple
Experiment Designed to Detect Tachyons - October, 2009
-
The Twin Paradox and
Mach's Principle - October, 2009
-
The age of the universe, the
Hubble constant, the accelerated expansion and the Hubble effect - August, 2009
-
Thomas Rotation and Mocanu
Paradox -- Not at all Paradoxical - July, 2009
-
The Nature of Time: From
a Timeless Hamiltonian Framework to Clock Time of Metrology - July, 2009
-
A Constructive Approach
to the Special Theory of Relativity - July, 2009
-
Unsuitability of the
Moving Light Clock System for the Lorentz Factor Derivation - June, 2009
-
Lorentz Contraction,
Bell's Spaceships, and Rigid Body Motion in Special Relativity
- June, 2009
-
Visualizing Imaginary
Rotations and Applications in Physics - June, 2009
-
The Central Mystery of
Quantum Mechanics - June, 2009
-
Adding to the Paradox:
The Accelerated Twin is Older - May, 2009
-
Time as an Illusion
- May, 2009
-
The Behaviour of
Clocks and Rods in Special and General Relativity - April, 2009
-
Experiment for Testing
Special Relativity Theory - April, 2009
-
Time Generated
by Intrinsic Observers - April, 2009
-
Particle-accelerator
Constraints on Isotropic Modifications of the Speed of Light
- April, 2009
-
Is the Lorentz
Contraction Inevitable in the Special Theory of Relativity?
- April, 2009
-
Accelerating
Spaceships Paradox and Physical Meaning of Length Contraction
- March, 2009
-
Einstein's Apple
and Relativity's Gravitational Field - March, 2009
-
Einstein's
Unpublished Opening Lecture for his Course on Relativity Theory in
Argentina, 1925 - March, 2009
-
Special
Relativity from the Wave Picture of the Light and of the Matter
- March, 2009
-
Speculations on
Dark Matter as a Luminiferous Medium - February, 2009
-
Some Paradoxes
in Special Relativity - February, 2009
-
An Alternative
Derivation of Einstein's Doppler Shift and Aberration Formulae
- February, 2009
-
Understanding the Special Theory of Relativity
- January, 2009
-
Supernovae Red
Shifts Fitted by Special Relativity, no Dark Energy - January, 2009
-
A New Paradigm for
Obtaining the Laws of Physics - January, 2009
-
Some Subtle
Concepts in Fundamental Physics - January, 2009
-
An Alternative to
Relativistic Transformation of Special Relativity based on the First
Principles - December, 2008
-
Experimental Test
of the Heisenberg Uncertainty Relation for Position and Momentum
- December, 2008
-
Particle and Wave:
Developing the Quantum Wave Accompanying a Classical Particle
- December, 2008
-
Illustrating Some
Implications of the Conservation Laws in Relativistic Mechanics
- December, 2008
-
Time Turns the
Universal Kaleidoscope - December, 2008
-
On Some Consequences
of the Snyder-Sidharth Deformation of Special Relativity
- December, 2008
-
Time and Reality
of Worldtubes - December, 2008
-
A Closer Look
at the Uncertainty Relation of Position and Momentum
- November, 2008
-
Probing New Limits
for the Violation of the Equivalence Principle in the solar-reactor neutrino
sector as a next to leading order effect - November, 2008
-
Harmonic mean,
the Gamma factor and Speed of Light - November, 2008
-
25 Years Ago:
The Official Farewell to the Meter - October, 2008
-
Relativistic
Mechanics and a Special Role for the Coulomb Potential
- October, 2008
-
A Variation of
the Clock Paradox and a Distinguishing Feature of an Inertial Frame
- September, 2008
-
Space-time
Attributes of Physical Objects and the Laws of Space-time Physics
- September, 2008
-
Uncertainties
Inherent in the Decomposition of a Transformation
- September, 2008
-
Lorentz
Transformations with Arbitrary Line of Motion - September, 2008
-
The Theory of
Relativity and the Pythagorean Theorem - September, 2008
-
The Einstein
Formula: E_0=mc2 "Isn't the Lord laughing?"
- September, 2008
-
Reversal in Time
Order of Interactive Events: Collision of Inclined Rods
- September, 2008
-
Modelling Time
- September, 2008
-
Event-by-event
Simulation of Double-slit Experiments with Single Photons
- September, 2008
-
Mass and Total
Energy of Moving Bodies in a Quantified Expansion
- August, 2008
-
Unravelling Lorentz
Covariance and the Spacetime Formalism - July, 2008
-
New Space Experiment
Proposed for General Relativity - July, 2008
-
The Lorentz Force
and the Radiation Pressure of Light - July, 2008
-
The Two Faces of the
Coin of Special Relativity - July, 2008
-
Primary and Reciprocal
Space-time Experiments, Relativistic Reciprocity Relations and Einstein's
Train-embankment Thought Experiment - July, 2008
-
Faster than Light
Communication: Is it Possible? - July, 2008
-
On Decompositions
of Lorentz Transformations and their Physical Interpretations
- May, 2008
-
Generalized Principle of Limiting 4-Dimensional Symmetry and the Solution
of the "Two-Spaceship Paradox" - May, 2008
-
Special Relativity
and Possible Lorentz Violations Consistently Coexist in Aristotle
Space-time - May, 2008
-
Unexplored Aspect of Velocity of Light - May, 2008
-
Bohm's Realist Interpretation of Quantum mechanics - May, 2008
-
Scientific Realism and Classical Physics - May, 2008
-
Einstein's E = mc2 Mistakes - May, 2008
-
Why Einstein, Podolsky
and Rosen did not Prove that Quantum Mechanics is `Incomplete'
- May, 2008
-
Theory of the
Elementary Particles - May, 2008
-
Quantum Mechanics, is it Magic? - April, 2008
-
The Absolute
Frequency of the 87Sr Optical Clock Transition - April, 2008
-
On the Nonlinear
Continuum Mechanics of the Luminiferous Medium - April, 2008
-
A Model of Electrons, Photons and the Ether - April, 2008
-
The Relativity
of Inertia and Reality of Nothing - April, 2008
-
On a Question
of Relativity - April, 2008
-
Michelson-Morley
Experiment within the Quantum Mechanics Framework - April, 2008
-
Characteristics,
Effects and Life Expectancy of a Primeval Photon - April, 2008
-
Relativity and
Aether Theory, a Crucial Distinction - March, 2008 (original October, 2006)
-
Spectral Emission
of Moving Atom - March, 2008 (original June, 2006)
-
Time Dilation and
Langevin Paradox - March, 2008
-
Time Desynchronization
and Ehrenfest Paradox - March, 2008
-
The Mystical Formula and the
Mystery of Khronos - January, 2008
-
Single Photon Michelson-Morley
Experiment via de Broglie-Bohm Picture: An Interpretation Based on the Hypothesis
of Frame Dragging - January, 2008
-
A New Approach to
Special Relativity and The Universe - January, 2008
-
Universality of the
de Broglie-Einstein Velocity Equation - December, 2007
-
Testing
General Relativity with Satellite Laser Ranging: Recent Developments
- November, 2007
-
NASA Tests of
Einstein's Universe Call for Non-empty Space Physics of Nonlocal
Classical Matter - November, 2007
-
Testing
the Gravitomagnetic Clock Effect on the Earth with Neutron
Interferometry - November, 2007
-
Remodeled
Relativity Theory - November, 2007
-
The Velocity
Increase of Mass and the Classical Physics - November, 2007
-
Faster than Light
Quantum Communication - October, 2007
-
Proper Mass
Variation under Gravitational and Coulomb Force Action in Relativistic
Mechanics of Point Particle - October, 2007
-
Synchronizing
Equivalent Clocks Across Inertial Frames - October, 2007
-
How Far
Should the Principle of Relativity Go? - October, 2007
-
The Watch
Paradox: Solution of the Problem - October, 2007
-
Comment on
"Macroscopic Violation of Special Relativity" by Nimtz and Stahlhofen
[arXiv:0708.0681v1]
- September, 2007
-
About Superluminal
Motions and Special Relativity: A Discussion of some Recent Experiments,
and the Solution of the Causal Paradoxes - September, 2007
-
Lorentz Transformation
Directly from the Invariance of the Speed of Light via the Addition Law of
Parallel Speeds - September, 2007
-
Space-time Uncertainty
Relation and Operational Definition of Dimension - September, 2007
-
On the Concept of
Relativistic Mass - September, 2007
-
Macroscopic Violation
of Special Relativity - September, 2007
-
Quantum Corrections
to Special Relativity - August, 2007
-
First-person Visualizations
of the Special and General Theory of Relativity - August, 2007
-
The VSL Discussion: What Does
Variable Speed of Light Mean and Should we be Allowed to Think About ?
- August, 2007
-
Light Speed Invariance is a
Remarkable Illusion - August, 2007
-
Derivation of Relativistic
law of Addition of Velocities from Superposition of Eigenfunctions and Discreteness
- August, 2007
-
Localized Waves: A
Scientific and Historical Introduction - August, 2007
-
Local Lorentz Transformation
and "Lorentz Violation" - August, 2007
-
Interpretation of Relativistic,
Transverse, and Longitudinal Mass using the Lorentz Transformation of Reference Time:
Explanation of Time Dilation via Spherical Light Clock - July, 2007
-
Clarifying Einstein's
First Derivation for Mass-Energy Equivalence and Consequently Making Ives's
Criticism Void - May, 2007
-
On Spacetime
Coordinates in Special Relativity - May, 2007
-
Learning More from the
Lorentz Transformations - April, 2007
-
The Limits of
Special Relativity - April, 2007
-
Albert Einstein:
His Annus Mirabilis 1905 - January, 2007
-
The Time at the
Subplanckian Scale - January, 2007
-
The Free-Will
Postulate in Quantum Mechanics - January, 2007
-
NASA's
Astonishing Evidence that c is not Constant: The Pioneer Anomaly
- January, 2007
-
Articles from 1997 to 2006
The World Year of Physics 2005
spawned many websites and articles
including;
Canadian
site
American
site
UK and Irish
"Einstein Year" site
Sci-Philately
Quantum
Diaries
Special Events
Beyond Einstein World Wide Webcast (past)
Einsteinfest at the Perimeter Institute (past)
Einstein Websites
Einstein - Image and Impact
Einstein's Big Idea
Einstein's annus mirabilis 1905
Special Journal Issues
Nature
- 1921 Issue
Physics World
New Journal of Physics
Symmetry
The Physics Teacher 2005 Issues
Special Conferences
Einstein's Century
Beyond Einstein
A Century After Einstein
Physik seit Einstein