Showing posts with label Physics News. Show all posts
Showing posts with label Physics News. Show all posts

Sunday, October 26, 2008

Practical Physics News

These days physics often seems far removed from reality-black holes, worm holes, particles being in two places at once, 10 spatial dimensions. So its a pleasant surprise that physicists at UCLA have found a new dramatic application for the scotch tape in your kitchen drawer: generating x-rays.

When the tape is peeled removing the adhesive-electrons are released generating electric currents. In the photo to the left you're seeing visible light emission from these electrons. It turns out they also emit x-rays, so many that its possible to x-ray a human finger. I was about to try an experiment and x-ray my painful tooth but that's on hold because apparently you have to do this in a vacuum.

OK here is the kicker-physicist Seth Putterman says the process could be used for nuclear fusion. I'm a bit skeptical about that given the history of table top fusion attempts so far. You can read the details here:

From a Strip of Scotch Tape, X-rays