Fine Structure

Wood Plank Not Found on Mars

Nope. It's not a wood plank. It looks like a wood plank but it's a rock. Sorry.

(also, one of the top ten signs you've been reading too much physics material recently: your mind says 'plank' and your fingers automatically type 'planck')
http://www.universetoday.com/2008/12/01/wood-plank-found-on-mars/

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