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Estimating the number of atoms in the observable universe

This video looks at a simple method for estimating the number of atoms in the observable universe. The first step involves estimating the number of atoms in a typical star. The second step involves estimating the number of stars in a typical galaxy. The third step involves estimating the number of galaxies in the observable universe.

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Видео Estimating the number of atoms in the observable universe канала Physics Explained
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25 октября 2018 г. 4:10:04
00:20:54
Physics Explained
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