Uncategorized

  1. Math

    Numbers of No Escape

    Playful iterative processes can get you stuck in mathemagical black holes.

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  2. Humans

    From the September 28, 1935, issue

    A new dam under construction, transmutation of elements, and signs that point to sunspots.

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  3. Humans

    Science Cinema

    The Museum of the Moving Image has launched a Web site that features short films, interviews, and articles devoted to science and technology in movies. It includes streaming video of award-winning student films, a discussion of the time-travel, science-fiction movie “Primer,” and articles about the movie “Kinsey” and the controversy over an “intelligent design” film. […]

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  4. Concentrated Guidance: Attention training gives kids a cognitive push

    A brief course on how to pay attention boosts children's scores on either intelligence or attention tests, depending on their age.

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  5. Milky seas clarified

    With the help of satellites, scientists have obtained the first-ever photos of an expanse of seawater filled with bioluminescent bacteria.

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  6. 19598

    This article is unfortunately murky. It’s confusing to state that accelerating charged particles to high speeds “therefore” produces cosmic rays. And what “charged particles”? Is the “energized” gas in fact “ionized”? “Energized” is too general a word. Finally, why are high-speed particles more easily compressed than slower-moving material? Fredric BlumMerion, Pa. “Energized” means that the […]

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  7. Astronomy

    Cosmic Ray Font: Supernova remnants rev up ions

    High-resolution X-ray images of the Tycho supernova remnant offer new evidence that supernova shock waves generate most cosmic rays that bombard Earth.

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  8. Health & Medicine

    Give It Up: Cutting back helps, but even a cigarette or two a day carries risks

    Reducing tobacco use curbs the risk of lung cancer, but smoking even a few cigarettes a day puts a person at three to five times the risk faced by a nonsmoker.

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  9. Health & Medicine

    Better Beta: Cells grown in lab may treat diabetes

    Scientists have developed a technique to mass-produce a type of pancreas cell needed for transplants into people with type 1 diabetes.

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  10. Chemistry

    Into the Void: Porous crystals could do more chemistry

    Chemists have devised a new approach that creates crystalline material with some of the largest pores yet.

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  11. Animals

    Looks Matter: If swallows aren’t spiffy, mates’ fidelity is iffy

    If a male barn swallow's plumage is more attractive than that of other males, his mate is less likely to have furtive flings with other wooers.

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  12. Health & Medicine

    Falling Influence: Influenza fighters have limited effects

    The most readily available drugs against influenza have abruptly declined in effectiveness in the past decade.

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