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"Everything should be as simple as it is, but not simpler", Albert Einstein
Browsing All posts tagged under »speed of light«
Error Undoes Faster-Than-Light Neutrino Results
by Edwin Cartlidge It appears that the faster-than-light neutrino results, announced last September by the OPERA collaboration in Italy, was due to a mistake after all. A bad connection between a GPS unit and a computer may be to blame. Physicists had detected neutrinos travelling from the CERN laboratory in Geneva to the Gran Sasso […]
Capturing video at the speed of light
December 18, 2011
…. One trillion frames per second MIT Media Lab researchers have created a new imaging system that can acquire visual data at a rate of one trillion frames per second. That’s fast enough to produce a slow-motion video of light traveling through objects. Video: Melanie Gonick. http://youtu.be/EtsXgODHMWk Read also: How to make the Slowest Slow-Motion Video […]
On the invariance of the speed of light
November 30, 2011
Harihar Behera, Gautam Mukhopadhyay The invariance of the speed of light in all inertial frames – the second postulate of special theory of relativity (STR) – is shown to be an inevitable consequence of the relativity principle of special theory of relativity taken in conjunction with the homogeneity of space and time in all inertial […]
New theories emerge to disprove OPERA faster-than-light neutrinos claim
October 6, 2011
– It’s been just two weeks since the Oscillation Project with Emulsion-tRacking Apparatus (OPERA) team released its announcement claiming that they have been measuring muon neutrinos moving faster than the speed of light, causing an uproar in the physics community. Since that time, many papers (perhaps as many as 30 to the preprint server arXiv […]
Live Chat: Have Neutrinos Broken the Speed Limit of Light?
September 28, 2011
Nothing can go faster than light, right? Einstein said so. But last week a group of researchers in Italy announced that they’d measured the speed of thousands of neutrinos (tiny, almost massless particles that were fired at their detector from the CERN particle physics lab 730 kilometers away) and found they were traveling slightly faster […]
“Relativity without light”, the answer in the superluminal neutrinos;
September 25, 2011
Suppose that the result of the OPERA experiment is right and neutrinos travelling faster than light…. This is the end of Einstein’s theory of special relativity and the Lorentz transformations? Is it possible the special relativity without the second postulation; The answer is yes. Read for example: “Simple derivation of the special theory of relativity […]
Potential mistakes in the Opera research
September 24, 2011
Almost all theoretical oriented physicists including myself seem to feel almost certain that there is a mistake in the Opera paper and the claimed violation of the relativistic speed limit will go away. On the other hand, I think that many people who like technology etc. were impressed by the precision work that the Opera […]
The Phantom of OPERA
September 24, 2011
Those working in science are accustomed to receiving emails starting with “dear sir/madam, please look at the attached file where I’m proving einstein theory wrong”. This time it’s a tad more serious because the message comes from a genuine scientific collaboration… As everyone knows by now, the OPERA collaboration announced that muon neutrinos produced at […]
Some Comments on the Faster Than Light Neutrinos
September 23, 2011
Matt Strassler The OPERA experiment has now presented its results, suggesting that a high-energy neutrino beam has traveled 730 kilometers at a speed just a bit faster than the speed of light. It is clear the experiment was done very carefully. Many cross-checks were performed. No questions were asked for which the speaker did not […]
Conclusions from OPERA experiment
September 23, 2011
EP Seminar “New results from OPERA on neutrino properties“ by Dario Autiero (Institut de Physique Nucleaire de Lyon) Friday, September 23, 2011 from 16:00 to 18:00 (Europe/Zurich)
Dimension-hop may allow neutrinos to cheat light speed
September 23, 2011
A CERN experiment claims to have caught neutrinos breaking the universe’s most fundamental speed limit. The ghostly subatomic particles seem to have zipped faster than light from the particle physics laboratory near Geneva, Switzerland, to a detector in Italy. Fish that physics textbook back out of the wastebasket, though: the new result contradicts previous measurements […]
Measurement of the neutrino velocity with the OPERA detector in the CNGS beam
September 23, 2011
The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km with much higher accuracy than previous studies conducted with accelerator neutrinos. The measurement is based on high-statistics data taken by OPERA in the years 2009, 2010 and […]
Neutrinos Travel Faster Than Light, According to One Experiment
September 22, 2011
Read also: A Six-Sigma Signal Of Superluminal Neutrinos From Opera! If it’s true, it will mark the biggest discovery in physics in the past half-century: Elusive, nearly massless subatomic particles called neutrinos appear to travel just faster than light, a team of physicists in Europe reports. If so, the observation would wreck Einstein’s theory of […]
Can Anything Move Faster Than Light?
September 21, 2011
Yes, the universe itself will eventually outpace the speed of light. Just how this will happen is a bit complicated, so let’s begin at the very beginning: the big bang. Around 14 billion years ago, all matter in the universe was thrown in every direction. That first explosion is still pushing galaxies outward. Scientists know […]
Light Traveled Faster in the Early Universe
July 14, 2011
A brilliant physicist João Magueijo asks the heretical question: What if the speed of light—now accepted as one of the unchanging foundations of modern physics—were not constant?“A number of surprising observations made at the threshold of the 21st century have left cosmologists confused and other physicists in doubt over the reliability of cosmology,” Magueijo says. […]
February 22, 2012
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