ASTRON 2B03 Lecture Notes - Lecture 17: Astron, Time Dilation
5 Dec 2018
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Document Summary
Strange things happen when everyone agrees on the speed of light. Nothing with mass can travel at light speed. Time dilation two observers see eacohters time moving slower because they measured light speed the same but travel different distance. Clocks tick slower on fast plane than on ground for one observer. Faster moving = slower the clock goes. Length contraction: fast moving objects appear to be shorter along direction of motion. Gps uses relativity to find your position corrects for it, satelites moving around earth fast. Heavy elements are effected by electrons that whiz around real fast. Colour of gold would change if its electrons weren"t moving so fast and had special relativity. Energy is mass times speed of light squared. Energy and mass are equivalent, related by a constant. Every little bit od mass has huge energy. Difernce between mass at rest and fast moving mass mo.
