Games and Tools
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Ever wanted a computer game that teaches you about the intertwining phenomena of angular momentum, torque, and angular motion? Of course you did. Call of Duty got nothing on this.
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Play around with any mechanism design you can dream of (provided it has four linkages and obeys Grashof's Law).
Videos
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Angular momentum does a lot of weird things—but maybe the weirdest is turning rotation around one axis into rotation around another.
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Yo-yo tricks are impressive displays of angular momentum on Earth. But in space? Well, everything is cooler in space, right?
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No sport quite captures the majesty of rotational motion and moment of inertia like the glorious playground sport of tetherball. Watch the undisputed world champions of the game at work.
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The name doesn't quite do it justice—more like "wheel how in the world are they doing that." See how many times you can spot a change in moment of inertia that speeds up or slows down rotation.
Websites
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The Tour de France is really just a big, mobile rotational motion laboratory. With spandex.
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But at the same time, why do bikes even need all those definitely-not-doped-up riders?
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The moon rotates around the Earth, the Earth rotates around the sun, the sun rotates, and—yes—the galaxy itself spins, too.
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Spiral galaxies, such as NGC 524 (a scant 90 million light years away) are abundant in the universe.