>> ^theali:
How does the Wiimote work without the infrared receiver in front of it?


The Wii remote only uses the infrared receiver for screen positioning, so the Wii knows where the Wii remote is pointing precisely. Otherwise the infrared receiver is useless. Aside from that the Wii remote has accelerometers within it, which communicate through blue-tooth, and this is what registers the Wii remotes' trajectory and motion in space. This latter technology is what this demo is using. Since there is no need to use the Wii remote as a pointing device here, they don't need the infrared at all. Only it's ability to detect motion and direction.

When did 15,000 pounds equal 15 tonnes? Last time I check a tonne was 2,000 pounds. I'm no math whiz, but I'm guessing the title should read 7.5 tonnes.

You caught me in a little slip, however please note that I said 15 tonnes, not 15 000- a much smaller margin of error. Let's agree to round it off and call it 7 1/2 tonnes, okay?