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Originally posted by Kama
i'm talking strictly sub-light here, how does velocity determine mass? how is a body more massive traveling at sub-light speeds than if it were at absolute rest?
Originally posted by danwild6
Because of e=mc*2. The faster you travel the heavier you get and thus you have to add more energy to make you go faster thus increasing your mass again.
The law of conservation of energy states that energy cannot be created or destroyed, but can change its form.
The law of conservation of mass (the Lomonosov-Lavoisier law) states that mass cannot be created or destroyed, but can change its form.
Originally posted by Xar Ke Zeth
But hypothetically, assume we're blind, we can process information infinitely fast, and we instantly know where an object it at any point in time. What's to stop something going physically faster than the speed of light?
Originally posted by Tuning Spork
Either goldeneagle's physics prof was wrong or goldeneagle misunderstood him. The explanation seems to address only a kind of Doppler effect where the astronaut would observe the clock to be frozen at 12:00. This would contradict the fact that c is a constant in any frame of reference, and thus the prof was not explaining relativity at all. Doppler shifts are not the same as relativistic time dilation.
And if two hours worth of clock light were to hit the astronauts eyes in a flash, he'd not only be blind he'd prolly be burnt to a crisp!