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Currently Playing: 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. You can help support this channel via the Physics Explained Patreon account: https://www.patreon.com/physicsexplained You can follow me on instagram: https://www.instagram.com/physics_explained_ig You can follow me on Twitter: https://twitter.com/PhysicsExplain1


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