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Mathematics, 01.04.2020 22:04 MOMMYDORA

There are 2 twins. one twin wants to explore the planet near proxima centauri and leaves on a spaceship traveling at 90% of the speed of light, while the other twin stays home on Earth. how much does the twin on Earth age while the other twin travels to proxima centauri

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There are 2 twins. one twin wants to explore the planet near proxima centauri and leaves on a spaces...
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