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Originally Posted by Rob Instigator
it needs to be at "relativistic" speeds, meaning speeds close to the speed of light.
light/energy travels at around 186,000 miles a SECOND. That is haul-ass. and that is as measured in a perfect vaccuum, such as in deep space.
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Not true. They did an experiment using clocks: one ground based and one on a commericial style jet (prob 707 or something). With very sensitive clocks, they could measure that time went slower for the jet or vise versa.
With an equally sensitive mass measuring device, they probably could have measured that too.