If you have a block of ballistics gelatin and a high-speed camera, pretty soon somebody gets a gun!

Another random thing I do is the search for extraterrestrial intelligence, or SETI. And you may be familiar with the movie 'Contact,' which sort of popularized that. It turns out there are real people who go out and search for extraterrestrials in a very scientific way.

The whole hardware industry has experienced the phenomenon in which every time computers get cheaper, they appeal to a new set of users; every time they get more powerful, old customers upgrade.

Many of the things the slow food people honor were innovations within historical times. Somebody had to be the first European to eat a tomato.

Within NASA, the shuttle is perhaps the least-groundbreaking project. Recall that Apollo was about creating brand-new technologies that did something unprecedented - putting men on the moon. The shuttle is, by comparison, a relic designed to make going into orbit routine.

Why pay a fee for Internet content when a million free sites are just a click away? There's no incentive until people are too addicted to the Net to turn off their computers, yet are bored with what's available.

Near Marseilles in the south of France, bouillabaisse is a cult food. In Toulouse and Carcassonne, the bean-based stew cassoulet is a cult food. Spain has paella and a number of others. Italy has so many, its cuisine is practically defined by them.