Xray Tape

Weird factoid -- when you peel normal Scotch tape in a vacuum, it emits x-rays -- apparently enough to generate an image! How weird is that.

Researchers at the University of California, Los Angeles, have shown that simply peeling ordinary sticky tape in a vacuum can generate enough X-rays to take an image — of one of the scientists' own fingers (see videos).

That's actually kind of cool. Everyone has done the Wintergreen Lifesaver crunch test, and apparently some other adhesives do the same thing. It apparently has something to do with crushing crystals and breaking molecular bonds, but they aren't quite sure.