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Your search has returned 15 articles:
  • Food for Thought

    Troubling Meaty 'Estrogen'

    Women take note. Researchers find that a chemical that forms in overcooked meat, especially charred portions, is a potent mimic of estrogen, the primary female sex hormone. That's anything but appetizing, since studies have linked a higher lifetime cumulative exposure to estrogen in women with an elevated risk of breast cancer.

    Indeed, the new finding offers a "biologically...

    10/17/2007 - 01:38 Nutrition
  • Food for Thought

    Leaden Chocolates

    Here's something that might give you pause after Halloween: Chocolates are among the more lead-contaminated foods. A new study has probed the source of chocolate's lead and concludes it's not the cocoa bean. Its concentrations of the toxic metal were among the lowest recorded for any foodstuff.

    The issue of lead-tainted chocolates is hardly new. Indeed, it was the...

    11/03/2005 - 16:10 Nutrition
  • News

    Warm Ice: Frozen water forms at room temperature

    Zap a layer of water with a strong electric field and, experiments dating back years suggest, some of the liquid freezes, even at comfortable, shirtsleeve temperatures. New experiments indicate that the electric field needn't be so strong. If this result holds, it would indicate that warm ice could appear on a range of confining surfaces, including the minuscule crevices in ordinary rocks....

    08/24/2005 - 12:00 Physics
  • Feature

    Metal Makeover

    Some of the brass directing U.S. Navy research funding appears to have gone off the deep end: The Navy has been sinking serious money into the possibility of building future warships out of glass. Since the late 19th century, shipbuilders have opted for metals, mainly various grades of steel. Yet recently, military agencies have spent tens of millions of dollars on the concept of boats with...

    11/02/2004 - 10:26 Materials
  • Food for Thought

    Omega-3's May Hit Food Labels

    The Food and Drug Administration has announced that it will allow food manufacturers to make health claims for two omega-3 fatty acids—oils typically found in coldwater fish. Food labels can now note that products containing these oils might provide some protection from heart disease.

    The oils carry unwieldy names and so go by their acronyms: eicosapentaenoic acid (EPA) and...

    09/22/2004 - 18:36 Nutrition
  • News

    Squashed spheres set a record for filling space

    As is clear to anyone who has played with blocks, piles of cubes can occupy every last niche of a space. As for other objects that can't be arranged to fill a space completely, such as cylinders and spheres, scientists have long pondered what their densest packings might be.

    Now, computer simulations indicate an unexpected result: Certain arrangements of modestly deformed spheres...

    06/15/2004 - 11:20 Physics
  • News

    Flexible E-Paper: Plastic circuits drive paperlike displays

    In a major step toward electronic paper that works like a computer monitor yet feels and behaves like a page of a book, researchers in the Netherlands have made electronic-ink displays on flexible plastic sheets.

    A U.S. company developed the electronic ink over the past several years. "Just like your newspaper, you can see it in bright light, dim light, or from all angles...

    01/28/2004 - 11:47 Materials
  • News

    Cool Cosmos: Orbiting telescope views infrared universe

    Astronomers this week unveiled some really cool images–along with some positively chilling spectra. The new images include pictures of a hidden stellar nursery and the first spectra ever taken of organic material in a remote galaxy. An infrared observatory, the Spitzer Space Telescope, had gathered the data since its launch last August.

    The telescope "will change...

    12/17/2003 - 08:53 Astronomy
  • News

    Cool Cosmos: Orbiting telescope views infrared universe

    Astronomers this week unveiled some really cool images–along with some positively chilling spectra. The new images include pictures of a hidden stellar nursery and the first spectra ever taken of organic material in a remote galaxy. An infrared observatory, the Spitzer Space Telescope, had gathered the data since its launch last August.

    The telescope "will change...

    12/17/2003 - 08:53 Astronomy
  • Feature

    New PCBs?

    Polybrominated diphenyl ether (PBDE) is hardly a household phrase. Yet it probably should be. Household products ranging from kids' pajamas to computers release these brominated flame retardants. The chemicals have been turning up in house and yard dust, as well as in specimens collected from sewage sludge, streams, and even people's bodies. For 3 decades, manufacturers have been putting...

    10/21/2003 - 10:52 Earth & Environment