kottke.org posts about lasers

Changing the color of the Moon with laser pointersOct 01 2012

Hey, if Randall keeps writing them, I'm gonna keep posting links to them...today's XKCD What If is "If every person on Earth aimed a laser pointer at the Moon at the same time, would it change color?"

Unfortunately, the laser energy flow would turn the atmosphere to plasma, instantly igniting the Earth's surface and killing us all.

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