Quote by Albert Einstein
No matter how fast one is moving toward or away from a source of light, the speed of light will always appear the same, a constant 186000 miles per second.
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Summary
This quote is referring to the concept known as the "invariance of the speed of light." It states that regardless of an observer's motion, their speed relative to a light source, the speed of light will always appear to be the same. This is a fundamental principle in physics according to Einstein's theory of relativity. It implies that there is no absolute frame of reference and challenges common-sense notions about the properties of motion. It played a crucial role in reshaping our understanding of space, time, and the interplay between matter and energy.