Opening and closing

I just found this on Parking Lot, from a post by John Moore on his blog, Our House:

I remember a teacher holding his hand out before me in a fist. "This is not a heart," he said. Then he opened it fully. "And this is not a heart." Then he started to move it open-and-closed, to and fro. "This is a heart".

 

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In case you want to know what the heart really looks like, how it works, etc., see the BBC's Human Body & Mind site. It's up for a Webby Award in the Education category. There are interactive features for the body and a bunch of psychological tests for the mind. Very cool! (Via Boing Boing.)

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