- #1

logearav

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**Time Dilation --- Help needed**

## Homework Statement

Time dilation says, " Moving clocks run slow".

## Homework Equations

## The Attempt at a Solution

For example, a stationary clock shows 4 PM and at the same 4 PM a spacecraft moves with a clock inside it showing the same 4 PM. Now after an hour, the spacecraft returns to earth. The stationary clock will show 5 PM. I presume the clock in the spacecraft will also show 5 PM. Then how can we say moving clocks run slow. Forgive if i sound silly. I need clarity on this concept. Thanks in advance