相對論既來源?

主要由愛因斯坦創立.

理論:
物理規律的形式在任何的慣性參考系 中是相同的.物理規律對於一位靜止在實驗室里的觀察者和一個相對於實驗室高速勻速運動着的電子是相同的.

光速 在任何參考系下是恆定不變的.




證實:
原子鐘 同時受狹義相對論因高速運動而導致的時間變慢（-7.2 μs/日），和廣義相對論承受着較弱的重力場而導致時間變快效應（+45.9 μs/日)。





名詞:
光速=c
(670,616,629.384英里/小時)

慣性參考系
人類從經驗中發現，總可以找到這樣的參考系：其時間是均勻流逝的，空間是均勻和各向同性的；在這樣的參考系內，描述運動的方程有着最簡單的形式。這樣的參考系就是慣性系.

原子鐘:
原子鐘以 原子共振頻率標準來計算及保持時間的準確。原子鐘是世界上已知最準確的時間測量和頻率標準.
(37億年誤差不超過1秒)

The Theory of Relativity started from the famous Michelson-Morley experiment in 1900 when several physicists were looking for a physical concept to explain the constancy of the speed of light

Some of them (Lorentz, Heaviside, Lodge, Fitzgerald, Lamor, and Einstein) explained the null effect of the Michelson-Morley experiment by the contraction of matter at movement. Two of them (Lamor and Einstein) integrated the fact into the theory that there is a different progress of time in different moving frames. These is how the Relativity Theory came out.There have already been numerous experiments conducted since 1905 to prove the Relativity Theory.

The following web-page contains the English translation of original paper on the Special Theory of Relativity published by Einsten in June 1905.

http://www.fourmilab.ch/etexts/einstein/specrel/www/