What goes down..doesnt come up?

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Offline stana

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What goes down..doesnt come up?
« on: 16/06/2007 11:02:11 »
Hey, I was having breakfast the other day, and i knew that i eat the food, the food is crushed by my teeth then travels down my throat then into my stomach and it is mixed with acids etc etc, but howcome if i tie myself to a tree, and hang myself upside down like a bat, i dont see my breakfast on the floor? Because thats kinda like defying the laws of gravity..

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Offline Bored chemist

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What goes down..doesnt come up?
« Reply #1 on: 16/06/2007 17:55:18 »
It's not gravity that propels the food through the gut.
http://en.wikipedia.org/wiki/Peristalsis
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