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Your search has returned 28 articles:
  • Feature

    The Star That Ate a Mars

    For several years, UCLA astronomers have studied GD 362, a peculiarly dirty white dwarf star 165 light-years away in the constellation Hercules. Now they are pretty sure why the atmosphere of this dense, hot but slowly cooling ghost of a once much larger star is so polluted. It ate a planet. “We probably have a destroyed world here,” says Michael Jura, coleader of the UCLA team. Apparently a...
    07/03/2009 - 14:24 Astronomy
  • Feature

    You Are Who You Are by Default

    You may not be riding the latest social wave on Facebook or MySpace, or tweeting your every impulse to fans on Twitter. But your brain is hooked on networking.Vision works because different brain regions link up to connect the dots of light and color into a meaningful picture of the world. Language depends on networks of neural circuitry that make sense of the words you hear or see and that...

    07/03/2009 - 14:19 Biomedicine, Psychology
  • Feature

    Bad Breath

    Tasteless. Invisible to the eye. Air contaminants less than a tenth the size of a pollen grain are nevertheless dangerous.Even on a clear, sunny day, many tens of thousands — and potentially millions — of tiny particles cloud every breath you take. Some are nearly pure carbon. But reactive metals, acids, oily hydrocarbons and other organic chemicals jacket most of these motes.Epidemiologists...

    07/03/2009 - 14:15 Biomedicine, Earth & Environment
  • Comment

    Five problems in physics without the definite article

    In a 2006 book that garnered much press for its silly attacks on string theory, author and physicist Lee Smolin provides a list of “The Five Great Problems in Theoretical Physics.” There are many offensive things about this list, starting with the use of the definite article in the title, which implies that people not working on these problems (the majority of theoretical physicists) are...

    07/02/2009 - 14:38
  • Science Future

    Science Future for July 18, 2009

    July 20 Follow as Nature Publishing Group reconstructs the first lunar landing via Twitter. Visit twitter.com/ApolloPlus40

    July 23–24 AAAS Science and Human Rights Coalition meeting to be held in Washington, D.C. See shr.aaas.org/coalition

    August 16–20 Chemists discuss advances at the American Chemical Society meeting in Washington, D.C. Register at www.acs.org

    07/02/2009 - 14:16
  • Science Past from the issue of July 18, 1959

    Computer could aid doctor in diagnosing — A computer that could aid the doctor in diagnosing a disease has been suggested by two scientists.… The machine would store codes for symptoms, diseases and their relationships. Then, in those cases which are particularly hard to diagnose, such as those already in the hospital, the machine would sort out all possible afflictions for the doctor’s...

    07/02/2009 - 14:15
  • Reviews & Previews

    Book Review: Weather’s Greatest Mysteries Solved! by Randy Cerveny

    There’s no escaping the weather: It affects all people nearly every day of their lives. And climate — long-term trends in temperature, precipitation and other aspects of weather — influences everything from agriculture to the health and vitality of civilization itself. In this book, climatologist Randy Cerveny provides an insider’s perspective on how storms, droughts and even asteroids may...

    07/02/2009 - 14:07
  • Reviews & Previews

    Book Review: Evolution Rx: A Practical Guide to Harnessing Our Innate Capacity for Health and Healing by William Meller

    Meller is a modern physician with an eye on the Stone Age. His book offers practical medical and health advice with evolutionary justifications that range from plausible to fanciful.Meller accepts the premises of evolutionary psychology, a controversial school of thought grounded in the assumption that our bodies and brains evolved to handle Stone Age conditions. Though he sometimes strains...

    07/02/2009 - 14:05
  • Reviews & Previews

    Complexity: A Guided Tour by Melanie Mitchell

    A scientist surveys the field and explores how complexity emerges from simple interactions in a variety of systems.Oxford Univ., 2009, 349 p., $29.95.

    07/02/2009 - 14:04
  • Reviews & Previews

    Animal Migration: Remarkable Journeys in the Wild by Ben Hoare

    A collection of color photos, maps and drawings depicts animals’ treks across the planet. Univ. of California, 2009, 176 p., $34.95.

    07/02/2009 - 14:02