How do motion-sensing video game controllers (like  DEC 18 2006

How do motion-sensing video game controllers (like the Wii remote) work? "The accelerometers used in the Nintendo controller are thinner than a penny, small enough to fit twelve on a postage stamp, and sell for under $6 a piece. They can accurately measure forces more than three times stronger than the pull of gravity in three directions - up and down, side to side, and forward and back."

Update: The folks at Spark Fun Electronics took the Wii remote apart to see how it worked. (thx, david)

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