Tuesday, 23 February 2010

The Real Cause of Global Warming

This is a picture of the space shuttle Endeavour performing one of the S-turns it used to shed speed as it headed back to Florida the other day. The photo was taken by Soichi Noguchi in the Space Station.

What I learned today is that the glow of the superheated gas is not caused by friction of the shuttle flying through the air, but by the gas having been compressed as the shuttle rammed at it. Well, that's what Phil Plait said on the Discover blog whence I stole the pic.

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