Suppose there was a fourth little pig. This one was a physicist. Unlike his brother the engineer, who built a house out of tried-and-true bricks, the physicist pig chose a building material by doing calculations based on fundamental principles. He settled on a substance made from silicon and oxygen, an abundant material with high bond strength and the aesthetic bonus of transparency. It was...
During the last week of April, an e-mail zinging through the bird-watcher community spilled the beans on one of the biggest and best-kept secrets in ornithology. It proclaimed that North America's famed ivory-billed woodpecker was not extinct after all, but Terry Rich of the U.S. Fish and Wildlife Service wasn't excited. He had heard that story too many times before. Since the last widely...