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how did einstein calculate speed of light. E mc 2 equation in German-born physicist Albert Einsteins theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other. When he combined the principle of relativity with the constant speed of light it became clear to Einstein that the speed of light was also independent of the speed of the observer as well as of the speed of the source of the light and that everyone in the universe no matter how fast they were moving would always measure the speed of light at exactly the same 300000 kms.
This is done since we believe c to be a true constant of nature. When he combined the principle of relativity with the constant speed of light it became clear to Einstein that the speed of light was also independent of the speed of the observer as well as of the speed of the source of the light and that everyone in the universe no matter how fast they were moving would always measure the speed of light at exactly the same 300000 kms. Which determines that mass and energy are equivalent.
C ϵ 0 m 0 1 2.
The motion-energy K green of an object is its total energy E blue minus its mass-energy m c-squared black. Richard Feynman discusses how Newton was able to explain gravity the tides and how we first calculated the speed of light. This is done since we believe c to be a true constant of nature. The speed of light is the maximum speed limit of the universe.