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Define Speed Of Light Please

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Posted by Greg Luton on January 15, 2003 04:57:36 UTC

Speed of light is constant according to my coordinate system, right?

I measure the speed of light by bouncing a laser off a target on the earth's surface 10,000 meters away and derive speed c.

I measure the speed of light by bouncing a laser off a target on the earth's surface 10,000 meters away and factor in for the earth's movement about the sun and derive speed c+.

I measure the speed of light by bouncing a laser off a target on the earth's surface 10,000 meters away and factor in for the earth's movement about the sun and the sun's movement about the Milky Way and derive speed c++.

I measure the speed of light by bouncing a laser off a target on the earth's surface 10,000 meters away and factor in for the earth's movement about the sun and the sun's movement about the Milky Way and the Milky Way's movement about the local galactic cluster and derive speed c+++.

What is the speed of light and how can it be constant? There is an answer, which bkparque should know, and Einstein probably knew, but could not quite rationalize. Or maybe Einstein thought the rest of us could not could not understand the answer.

Could you understand the answer?




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