January 5, 2012
Beads of water on the moon
During the Apollo missions, NASA astronauts shoveled, bagged and sent back to Earth close to 400 kilograms of lunar rocks and soil. But …
The EARTH archive
September 2008
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26 articles · Page 2 of 2
January 5, 2012
A whale of a wind turbine
According to conventional wisdom, things that need to move efficiently through air or water should be sleek and streamlined. Dolphins, jets and …