Uncategorized

  1. Math

    Online Bidding Tips

    The auction Web site known as eBay has become a vast marketplace, bringing together buyers and sellers of all sorts of goods. It has also become a handy laboratory for testing ideas in economics about markets and prices. In general, auctions ought to serve as an efficient mechanism for setting prices. Consequently, you would expect […]

    By Ivars Peterson
  2. Astronomy

    Extrasolar planets: More like home

    A trove of newly discovered planets orbiting other stars suggests that the solar system may not be the oddball it had begun to seem.

    By Ron Cowen
  3. Animals

    Finches figure out solo how to use tools

    The woodpecker finches of the Galápagos, textbook examples of birds that use tools, pick up their considerable skills without copying each other.