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Piranha vs. Arapaima: Engineers find inspiration for new materials in

Harlequinmania

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Harlequinmania

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It's a matchup worthy of a late-night cable movie: put a school of starving piranha and a 300-pound fish together, and who comes out the winner? The surprising answer -- given the notorious guillotine-like bite of the piranha -- is Brazil's massive Arapaima fish. The secret to Arapaima's success lie in its intricately designed scales, which could provide "bioinspiration" for engineers looking to develop flexible ceramics.

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1000 Gallon Tank in the Hole 

http://www.sgreefclub.com/forum/topic/120957-1000-gallon-3d-hole-in-the-wall/ 

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