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unified structure known as spacetime – in which the speed of light can be used to define values for both (i.e. “lightyears”, “light minutes”, and “light seconds”). The measurement of the speed of light has also become a major factor when determining the rate of cosmic expansion...
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FromScience News Term limits could be a prescription to speed change along. FromThe Daily Beast He felt his body grow limp (like one of those high-speed films of a flower wilting). FromThe Daily Beast The jet engine instantly brought two advances over propellers: it doubled the speed and...
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PAllen Science Advisor 9,210 2,432 cianfa72 said: Here with "physical distance" between the two spatial locations I understand the following: Consider the timelike worldlines of the 'things' emitting and receiving the light ray, respectively. They cross in two points (events) the spacelike...
s claim that nothing can travel faster than the speed of light. Eric Lerner, writing about “Magnetic Whirlwinds” inScience Digestin 1985, stated that “magnetism is as fundamental as gravity.” Citing the research and theories of plasma physicist A. Peratt of Los Alamos National Laboratory,...
phinds Science Advisor Insights Author Gold Member 18,982 14,426 Tiago said: Ok, but if I'm going close to the speed of light for 10 years, when I'd return to Earth, 20 years (or so) would have passed and I only aged 10. So time went slower for me than time of people on...