Changes

Many objects have been accelerated to velocities near the speed of light (in particle colliders) and it is easily observed that the rate at which those objects speed up as a constant force is applied is (very precisely) consistent with special relativity and not Gallilean relativity.  That is, as their measured speed approaches the speed of light, that speed increases less and less in response to each "push" even though the "pushes" remain the same strength, thus apparently violating Newton's F = ma.  On the other hand, Einstein's famous E = gamma * mc^2 appears to describe their rate of acceleration very accurately.  I don't understand how this article proposes to surmount that objection. [[User:ZeroThree|ZeroThree]] 15:47, 28 October 2012 (EDT)

Many objects have been accelerated to velocities near the speed of light (in particle colliders) and it is easily observed that the rate at which those objects speed up as a constant force is applied is (very precisely) consistent with special relativity and not Gallilean relativity.  That is, as their measured speed approaches the speed of light, that speed increases less and less in response to each "push" even though the "pushes" remain the same strength, thus apparently violating Newton's F = ma.  On the other hand, Einstein's famous E = gamma * mc^2 appears to describe their rate of acceleration very accurately.  I don't understand how this article proposes to surmount that objection. [[User:ZeroThree|ZeroThree]] 15:47, 28 October 2012 (EDT)

What about all the evidence for Maxwell's equations, including electromagnets and radio waves, and all the everyday inventions that demonstrate that these things are real?  Maxwell's equations contradict classical physics, and relativity was developed specifically to make Maxwell's equations valid in all reference frames.  This includes not only the issue of a constant speed of light, but also magnetic fields arising from "moving" charges, where motion is defined in terms of each observer.  Indeed, special relativity can be derived directly from Maxwell's equations.  Any confirmation of Maxwell's equations is consistent with relativity and not with Galilean relativity.  [[User:NgSmith|NgSmith]] Fri Jan 31 13:29:34 EST 2020

:What about all the evidence for Maxwell's equations, including electromagnets and radio waves, and all the everyday inventions that demonstrate that these things are real?  Maxwell's equations contradict classical physics, and relativity was developed specifically to make Maxwell's equations valid in all reference frames.  This includes not only the issue of a constant speed of light, but also magnetic fields arising from "moving" charges, where motion is defined in terms of each observer.  Indeed, special relativity can be derived directly from Maxwell's equations.  Any confirmation of Maxwell's equations is consistent with relativity and not with Galilean relativity.  [[User:NgSmith|NgSmith]] Fri Jan 31 13:29:34 EST 2020

== Mass depending on direction ==

== Mass depending on direction ==