World Science Scholars
11.2 Time on Earth Clock versus Time on Rocket Clock (with Gamma)

This interactive demonstration compares the rate of the passage of time on an Earth clock versus the rate of the passage of time on a spaceship clock, the ratio of which is given by $\gamma$. Use the slider to set the rocket speed and press start. The slowing of time is hardly noticeable at speeds that are much less than $c$. But when the spaceship moves at speeds close to $c$, the slowing becomes dramatic. Take advantage of the pause function to compare the clock readings at different speeds.



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