If there's even a little wind, black clothing is the better choice for those who want to keep cool, like goths who understandably don't like sweating through their make-up. So find something black to wear this summer.

Faster still, you may have a "big dent" or maybe even a "big dent with a hole in the middle", caused by the ravioli having enough energy to push the dent through, stretching and thinning the hull metal till the metal finally tears in the middle of the dent.

Bubbling cauldrons, toxic substances, insane and dangerous ideas -- whatever happened to that kind of science? Take a look at Mark Roth in his lab in Seattle. It's mad. It's heroic. It's science the way it's supposed to be.

a collection of illustrated articles on the chief causes of image degradation in photography