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  • News

    Champion of strength is forged in mighty anvil

    A newly created form of carbon has captured the crown of world's strongest known material. A team of researchers in Germany and France made the new material using a specialized, multijawed anvil that simultaneously squeezed and heated a powder of all-carbon molecules known as buckyballs.

    At 200,000 times atmospheric pressure and a temperature of 2,500 kelvins, the powder...

    09/13/2005 - 12:18 Physics
  • Feature

    Armor-Plated Puzzle

    A few years after Francis H. Crick and James D. Watson unveiled the structure of DNA in 1953, they rocked the fledgling field of molecular biology again with a bold notion: Viruses are, in part, structured as crystals are. That idea captivated Donald L.D. Caspar and Aaron Klug, who then systematically applied what they knew about crystal geometry to classify and predict the structures that...

    08/29/2005 - 10:49 Numbers
  • Feature

    Empty Nets

    In the 1850s, 43 schooners from a single port, Beverly, Mass., plied the North Atlantic's Scotian shelf, which is prime cod territory in Canadian waters. Over the sides of the ships, crews dropped lines with single hooks and doggedly jigged their bait along the seafloor to entice the big predatory fish. Although the combined fleet used fewer than 1,200 hooks, the ships' logs indicate that...

    05/31/2005 - 18:30 Ecology
  • News

    Hornbills know which monkey calls to heed

    The yellow-casqued hornbill, an African forest bird, can tell the difference between the alarm call that monkeys make in response to an approaching leopard, which is not a threat to the birds, and the monkey alarm triggered by a crowned eagle, which is a threat to the hornbill, researchers have found.

    This makes the hornbill the first bird known to distinguish between alarm calls given...

    03/16/2004 - 19:15 Animals
  • Feature

    In Search of a Scientific Revolution

    Plenty of people claim to have theories that will revolutionize science. What's rare is for other scientists to take one of these schemes seriously. Yet that's what's happened since May 2002 when theoretical physicist Stephen Wolfram self-published a book in which he alleged to have found a new way to address the most difficult problems of science. Tellingly, he named this treatise A New Kind...

    08/12/2003 - 12:48 Humans & Society
  • News

    Flame retardants morph into dioxins

    From Hamburg, Germany, at a meeting of the Society of Environmental Toxicology and Chemistry–Europe

    Polybrominated diphenyl ethers (PBDEs) make up a family of common flame retardants for plastics, foams, and fabrics. Nearly ubiquitous in air and water, these pollutants have gained notoriety for accumulating not only in wildlife but also in human blood and breast milk (SN: 10/13/01, p....

    05/20/2003 - 13:01 Earth & Environment