Uncategorized

  1. Math

    Prepping for Calculus

    The “Calculus Page” Web site provides links to a variety of resources for calculus students and teachers, from problem sets with step-by-step solutions to tips on preparing for exams. Linked sites offer online tutorials and courses, sample exams, animated examples, mathematical software, and information on calculus competitions and the history of calculus. Go to: http://www.calculus.org/

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  2. Astronomy

    Revved-Up Universe

    Astronomers are busy testing the seemingly bizarre notion that the expansion of the universe is accelerating.

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  3. Physics

    Ultracold molecules form inside superatom

    The formation of molecules within an ultracold gas of atoms called a Bose-Einstein condensate could be a step toward fluids in which molecules share the same quantum state.

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  4. Animals

    Flight puts the fight back into crickets

    Researchers are just discovering what gamblers in China have known for centuries—flying can make a losing cricket fight again.

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  5. Chemistry

    Stopping batteries from starting fires

    A new flame-retardant substance could make rechargeable lithium-ion batteries practical for powering electric vehicles.

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  6. Sleepyheads’ brains veer from restful path

    Unusual patterns of brain activity appear in sleep-deprived volunteers trying to solve verbal and mathematical problems.

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  7. Humans

    R&D budget should ease biomed envy

    President Clinton's science budget for 2001 proposes to narrow a gap that's yawned in recent years between lusher funding for biomedicine and leaner support for the physical sciences.

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  8. Astronomy

    Solar magnetism: Memories are made of this

    Despite all its upheavals, the sun's magnetic field has a built-in memory, allowing it to return to its original position and configuration.

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  9. Drugs order bacteria to commit suicide

    Seeking to explain how antibiotics work, scientists find a protein that commands bacteria to kill themselves.

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  10. Earth

    El Niño: It’s back!

    An increase in ocean temperatures in the central Pacific heralds the onset of El Niño, whose effects should show up in the United States this fall.

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  11. Malaria parasite reveals old age

    The DNA of a malaria-causing parasite suggests it is at least 100,000 years old.

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  12. 19102

    We’ve seen many expositions about the risk and danger of radiofrequency emissions from cell-phone antennae. As a bystander to the whole issue, I don’t understand why the manufacturers don’t design the phones so the antenna comes out by the mouthpiece. First, it would be a more natural location for grabbing and extending, and second, it […]

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