Feature: Space elevators physicsworld.com Stairway to the heavens Escaping the Earth’s gravitational clutches by climbing up a long rope made from carbon nanotubes is a

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Date: 2012-01-28 14:56:01		Feature: Space elevators physicsworld.com Stairway to the heavens Escaping the Earth’s gravitational clutches by climbing up a long rope made from carbon nanotubes is a Add to Reading List Source URL: www.davidappell.com Download Document from Source Website File Size: 1,11 MB Share Document on Facebook