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You are browsing the archive for 2010 March 25.

25 March 2010

Just how thin is the shell of air that surrounds us? This thin!

Grab a globe from any classroom and put a dime on it. Lay it flat. That’s about how thick the layer of atmosphere surrounding Earth is. Now there is some air all the way out to hundreds of miles, but 98% of our protective coating of air is beneath the top of the dime. A gentleman in West Yorkshire has shown visually just how thin our life giving coating of …

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