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Professor Brian Cox explains using a simple light clock, time is not absolute. Because the speed of light remains constant, a light beam in a moving clock traces a longer, diagonal path from an outside observer's perspective, proving that moving clocks run slower and time literally bends to the speed of the observer.This reveals a mind-bending reality: if you journeyed through space at 99.94% the speed of light for ten years, you would return to an Earth that had aged 29 years; making you a lite
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Professor Brian Cox explains using a simple light clock, time is not ab…
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