When you bite down on wintergreen-flavored LifeSavers candies in the dark, they glow. The production of light by some materials when under friction or pressure, a phenomenon called triboluminescence, has been known for centuries, mostly as a novelty. Now researchers have shown that rapidly unwinding a roll of Scotch tape inside a vacuum generates not only visible light but also enough x-rays to image a human finger. Led by physicist Seth Putterman at the University of California, Los Angeles (UCLA), the researchers are now developing what they hope will be a cheap, simple source of x-rays for clinical imaging.
:O This is really neat and quite the novel way of decreasing price for body imaging techniques. I wonder how the big three react to this - Siemens, GE and Philips.