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Your search has returned 56 articles:
  • Feature

    Infinity

    Before ER, House and even Marcus Welby, a TV-doctor show called Ben Casey opened each week with a hand drawing symbols, as the voice of Sam Jaffe identified them one by one: “Man, Woman, Birth, Death … Infinity.”Those five symbols supposedly encapsulated what medicine was all about. But they could equally well have summarized the story of the universe. Cosmologists, the scholars of cosmic...

    05/22/2009 - 13:17 Cosmology
  • Feature

    Nanomaker's Toolkit

    When assembling a jigsaw puzzle, just shaking up the box and dumping the pieces in a pile probably isn’t the best strategy. The pieces won’t fit themselves together by chance. But in the nanoworld, this approach could prove surprisingly fruitful.It might take the fun out of doing the puzzle, but scientists are now figuring out how to make the pieces move, on their own, into the desired...

    05/22/2009 - 13:09
  • Feature

    Serotonin: What the gut feeds the bones

    The hip bone is connected to the backbone. The backbone is connected to the neck bone. And lately, scientists have begun to think that all dem bones may be connected to the intestine — at least by biochemical signals. If the current evidence holds up, it means that a chemical better known for influencing the brain may also corrode the internal structure of the skeleton. Such is the state of...

    05/22/2009 - 13:00
  • Comment

    Quest for energy efficiency needs public engagement

    On April 14, the National Science Board released a draft report called “Building a Sustainable Energy Future,” offering advice on how the United States can transition to renewable and clean sources of energy. Dan Arvizu, the cochairman of the board’s task force on sustainable energy and director of the National Renewable Energy Laboratory in Golden, Colo., recently talked with staff writer...

    05/22/2009 - 12:48
  • Reviews & Previews

    Book Review: 1001 Inventions That Changed the World by Jack Challoner, ed.

    Countless inventions, large and small, have played defining roles in human history. But when editor Jack Challoner began to compile a list of these innovations, he wondered if 1,001 might be too many. He quickly realized the number was far too small.

    The items that made Challoner’s list form a fascinating collection. People use many of them every day yet often take them for...

    05/22/2009 - 11:53