Louis Friedman

Nov. 13, 2009

Solar Sail Spacecraft

The Planetary Society plans to power a spacecraft using the pressure of sunlight reflecting off huge solar sails.

spaceflight, solar sail, sagan, lightsail

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Michael Pollan Talks Plants and Food

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Building Bridges From Plastic Shampoo Bottles

A New Jersey company transforms plastic waste into beams sturdy enough to support tanks and trains.

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