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Two mountains. He sent pulsed light from one mountain to a reflector on another. The travel time was measured and divided by two.

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How did Amercian physicist Albert Michelson measure the speed of light?

A. A. Michelson was not interested in measuring the speed of light.He only measured how it changes if you move toward the light, awayfrom it, or sideways. (It doesn't.)


What was Albert Einstein's amazing idea about the speed of light?

That, no matter who measured the speed of a beam of light, the result would be the same. In other words, someone travelling at 99% the speed of light would measure the same speed as someone standing still (all realtive to the light source).


Who try to measure the speed of light?

Roemer was the first to measure the speed of light.


How did Albert Einstein determine the speed of light?

Albert Einstein did not determine the speed of light, rather that the speed of light was the maximum speed possible in the universe. The speed of light was discovered in the late 1600's by Danish astronomer Ole Roemer, using Jupiter and its moon Io. It was later used in Maxwell's equations of electromagnetism, and then later used by Albert Einstein in his theory of special relativity.


Who determined that the speed of light as a universal?

Albert Einstein I believe..............


What was albert Einstein's contribution to the speed of light?

There was none. The speed of light was precisely the sameafter his passing as it had been before his birth.


How would you measure the speed of light?

Light years


Who is Albert michelson?

Albert Michelson was the first American to win a Nobel Prize for measuring the speed of light.


Does a megaphone measure light and speed?

No, a megaphone is a device used to amplify sound, particularly human speech. It does not measure light or speed.


Does gravity move at the speed of light?

Yes, gravity moves at the speed of light according to the theory of general relativity proposed by Albert Einstein.


How do you measure the speed of light?

by getting boners.


Who said that speed of light will be exact even if the person goes the half of speed of light?

Albert Einstein postulated that all observers, no matter what their velocity relative to the emitter of the light, will measure the light speed from that emitter as exactly the same as any other observer. The implicatons of this postulate have been proven to be true in every one of countless experiments in the decades since he made that postulate.