Uncategorized

  1. Planetary Science

    Ringing in a new moon

    The Cassini spacecraft has spotted a new moon of Saturn, only the second known to lie within the planet's main rings.

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  2. Why making fat is good for you

    Making new fat from food intake, as opposed to using stored fat, regulates genes important for blood sugar, fatty acid, and cholesterol concentrations.

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  3. Health & Medicine

    Us against Them

    New antibiotics may be valuable weapons in the fight against tougher bacteria.

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  4. 19553

    This article should also point out that only a very thick atmosphere could have allowed the surface temperature to be high while the radiation output from the sun was only 70 percent that at the present. J. Thomas BaylorAustin, Texas Theorists agree that the atmosphere of Mars was thicker when the planet was wetter. They’re […]

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  5. Planetary Science

    Roving on the Red Planet

    Scientists review the discoveries made by the Mars rovers after nearly 18 months on the Red Planet.

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  6. Math

    Divisibility by Seven

    An ingenious, recently developed method tests if a number is divisible by 7.

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  7. Cockroach Study

    For students and teachers, this Web page by high school biology teacher Mary Colvard offers a lesson plan for a lab in which students look for signs of learning in cockroaches. The lesson plan includes background information about cockroaches. Go to: http://www.accessexcellence.org/AE/AEC/AEF/1995/colvard_cockroach.html

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  8. Humans

    Letters from the May 21, 2005, issue of Science News

    Rascal rabbits Evidence of animals sensing where people are looking and what they’re seeing is interesting yet hardly new (“Monkey See, Monkey Think: Grape thefts instigate debate on primate’s mind,” SN: 3/12/05, p. 163). For years, I have observed that wild rabbits will remain motionless as long as I stare in their direction. But as […]

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  9. Humans

    From the May 18, 1935, issue

    Making heavy water, probing the cause of multiple sclerosis, and establishing galaxy rotation.

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  10. Physics

    Molecular Anatomy Revealed

    Using ever-faster lasers to zap the electron clouds in atoms and molecules, scientists are making major strides toward observing and controlling the elementary quantum transformations that underlie all of chemistry.

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  11. 19552

    This article, on the deleterious effect of dams on coastal systems, contains a major conceptual error. It states that “another important cause of the ground sinking is the waning of sediment deposition by the Mississippi River.” But over the past 100 million years, the northern Gulf Coast region has been subsiding because of excessive sediment […]

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  12. Earth

    Muddy Waters

    Even though human activities such as agriculture and deforestation are sending more sediment into streams and rivers, less of that material is reaching river deltas, a trend that exacerbates problems such as subsidence and coastal erosion.

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