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# Travelling at speed of light!

Can anyone please explain why time becomes slow for a person while travelling with speed of light pertaining to normal observer watching(In general words)?

Note by Ishan Dixit
2 years, 9 months ago

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The first thing is that no material body can reach the speed of light in vacuo. But a body can reach a speed close to that of light.

The second thing is that in special relativity, the faster you move through space (relative to a reference frame) the slower you will move through time (relative to that same reference frame). And this can be calculated as:

$T'=\dfrac{T}{\sqrt{1-\tfrac{v^2}{c^2}}}.$

Where $$c=\text{speed of light}$$; · 2 years, 9 months ago