However, time is always determined by dividing the distance something has traveled by its speed, right? For example if you take your car and drive for 100 miles at 100 mph, it will take you exactly an hour to get to your destination.
But if one person travels 186,000 miles towards a ray of light and another travels 186,000 miles away from it, but the speed of light is constant, the light would reach the first person 2 seconds faster – that is at a different point in time.
That’s the reason why time is relative and why Mr. Einstein has become so famous.
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A Brief History Of Time By Stephen Hawking - Book Summary
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