Changes

#:This is an interesting observation.  The world's best scientific minds are looking into it.  That relativity is incorrect is not being taken seriously as a possible explanation.

#:This is an interesting observation.  The world's best scientific minds are looking into it.  That relativity is incorrect is not being taken seriously as a possible explanation.

#:'''Update:'''  The problem seems to have been caused by a faulty cable connection between a computer and a GPS unit.  When the connection was repaired, the travel time increased by 60 nanoseconds, which had been the amount of the anomaly <ref>http://www.cbc.ca/news/world/story/2012/02/22/technology-faster-than-light-neutrinos.html</ref> <ref>http://www.foxnews.com/scitech/2012/02/22/loose-wire-led-to-stunning-faster-than-light-particle-finding/?intcmp=features</ref>.

#:'''Update:'''  The problem seems to have been caused by a faulty cable connection between a computer and a GPS unit.  When the connection was repaired, the travel time increased by 60 nanoseconds, which had been the amount of the anomaly <ref>http://www.cbc.ca/news/world/story/2012/02/22/technology-faster-than-light-neutrinos.html</ref> <ref>http://www.foxnews.com/scitech/2012/02/22/loose-wire-led-to-stunning-faster-than-light-particle-finding/?intcmp=features</ref>.

#:The objection has been raised that a recent news report from the BBC ("now we are 100% sure that the speed of light is the speed of neutrinos") is also contradictory, since neutrinos have mass and are therefore forbidden by relativity to travel at exactly the speed of light.  Since the neutrino energies were 17GeV, and the current estimate for the neutrino mass is about 0.25eV, the deviation from the speed of light would be about 1 part in 10²².  This means that the neutrinos would arrive at the detector about .26x10^-24 seconds (.26 yoctoseconds) later than the speed of light itself.  This is one quarter of a billionth of a femtosecond, or about .26x10^-15 of a nanosecond.  The accuracy of the GPS units and cesium clocks used in the measurement is greater than a nanosecond, so the discrepancy cannot possible be detected.  It is unfortunate that the claim "the speed of light is the speed of neutrinos" was taken so literally.

#:The objection has been raised that a recent news report from the BBC ("now we are 100% sure that the speed of light is the speed of neutrinos") is also contradictory, since neutrinos have mass and are therefore forbidden by relativity to travel at exactly the speed of light.  Since the neutrino energies were 17GeV, and the current estimate for the neutrino mass is about 0.25eV, the deviation from the speed of light would be about 1 part in 10²².  This means that the neutrinos would arrive at the detector about .26x10^-24 seconds (.26 yoctoseconds) later than the speed of light itself.  This is one quarter of a billionth of a femtosecond, or about .26x10^-15 of a nanosecond.  The accuracy of the GPS units and cesium clocks used in the measurement is greater than a nanosecond, so the discrepancy cannot possibly be detected.  It is unfortunate that the claim "the speed of light is the speed of neutrinos" was taken so literally.

#''Anomalies in the locations of spacecraft that have flown by Earth ("flybys").''

#''Anomalies in the locations of spacecraft that have flown by Earth ("flybys").''

#:This may be another case of the Pioneer anomaly, or it may be something else.  However, it is very unlikely that it shows that relativity is wrong and Newtonian mechanics is correct.

#:This may be another case of the Pioneer anomaly, or it may be something else.  However, it is very unlikely that it shows that relativity is wrong and Newtonian mechanics is correct.

#:More generally, special relativity was combined with quantum theory to produce [[quantum field theory]] (QFT). An example of a QFT is [[quantum electrodynamics]], the most precise theory in physics. Furthermore, string theory is Lorentz invariant and produces general relativity in the low energy limit.

#:More generally, special relativity was combined with quantum theory to produce [[quantum field theory]] (QFT). An example of a QFT is [[quantum electrodynamics]], the most precise theory in physics. Furthermore, string theory is Lorentz invariant and produces general relativity in the low energy limit.

#''The change in mass over time of standard kilograms preserved under ideal conditions.''

#''The change in mass over time of standard kilograms preserved under ideal conditions.''

#:Clearly there are a few dots that need to be joined here before this can become a coherent argument for or against anything. The best interpretation that can be put on it is that the [[Law of the conservation of mass|principle of conservation]] of mass is being violated. However relativity, with its concept of mass/energy equivalence, holds to a more general [[Principle of conservation of energy|principle of conservation of energy]]. Thus relativity might easily explain the observation, as keeping the standard masses in a perfect energy isolated environment is a far harder task than keeping them in a matter isolated environment (which is itself not perfectly achievable).

#:We are baffled that anyone would connect this problem with relativity. The non-relativity principle of conservation of mass has been known, in general, for hundreds of years, going back to the time of the alchemists, and has been a fundamental and accurate principle since the 19^th century.  The principle of conservation of energy has also been a fundamental and accurate principle since the 19^th century.  Relativity simply generalizes this to a principle of both together, with even greater precision.  So, in principle, it is recognized that the mass of the standard kilogram could change if an energy transfer took place.  But no combustion, corrosion, or nuclear decay is suspected of having taken place. In any case, the amount of energy that would have to have been released is 1.25 megawatt-hours, which would certainly have been noticed.

#:However, until specific explanations for the variations in mass of the various standard bodies are offered, there is no foundation to any speculation as to what laws of physics are involved, let alone whether they are being violated.

#:Relativity does not promise uniformity of the universe any more strongly than classical physics did.  The apparent change in mass of the standard kilogram is simply a mystery.

#''The uniformity in temperature throughout the universe.''

#''The uniformity in temperature throughout the universe.''

#:The cited article is fascinating, and is about a fascinating aspect of contemporary physics.  Like item 22, it would have been useful to say what the article is about.

#:The cited article is fascinating, and is about a fascinating aspect of contemporary physics.  Like item 22, it would have been useful to say what the article is about.