“ Universal Gravitation Quote from "Universal Gravitation", UniversalPhysics.org/article_8.html "(24) Universal gravitation involving two bodies in... (read full comment) ”
Posted on March 28, 2010 at 2:20 PM EDT
The TR10
Our annual list of 10 technologies that could change the world. This year: Light-field photography. Solar microgrids. Crowdfunding. Facebook's Timeline. And more...
The Library of Utopia People Power 2.0
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