Why Does Time Slow Down When You're Moving Fast?

Imagine you're in a super-fast car, zooming away from your friend. To you, everything seems normal, but to your friend, it looks like your clock is ticking slower! It's like when you're on a roller coaster and the world feels like it's moving backward, only this time, time itself is playing tricks on you.

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Examples

  1. If you're on a rocket going really fast, your friend watching from Earth would see your watch ticking slower.
  2. Imagine two people holding clocks, if one moves at near-light speed and comes back, their clock shows less time has passed compared to the other's.
  3. A runner moving very quickly might age slower than someone sitting still.

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