Vol. 176 No. #4 Archives

More Stories from the August 15, 2009 issue

  1. Computing

    Random numbers faster

    Researchers have devised a way to use a laser to create strings of orderless bits for encryption.

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  2. Earth

    Signs of ancient sea ice

    New analyses of Arctic seafloor sediments suggest floating ice debuted in the ocean at least 47.5 million years ago.

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  3. Life

    Old gene, short new trick

    A single genetic modification is linked to the stature of short-legged dog breeds, new research shows.

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  4. Physics

    Raindrops go it alone

    A new study using a high-speed camera finds the shattering of solitary drips can produce a variety of sizes.

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  5. Health & Medicine

    Early testing for Alzheimer’s

    Spinal fluid test in people with mild cognitive impairments can predict in many cases who will develop the disease.

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  6. Life

    Sleeping ugly

    Analysis pinpoints genes that help springtails dehydrate and tough out the winter.

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  7. Life

    Protein plays three cancer-fighting roles

    The tumor suppressor protein, p53, has three ways to protect cells from turning cancerous. A new study shows that p53 helps make microRNAs.

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  8. Health & Medicine

    Chimpanzees die from primate version of HIV

    A new study links the simian immunodeficiency virus to serious AIDS-like illness in a wild population.

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  9. Earth

    Lopsided lights

    Simultaneous snapshots reveal that northern and southern auroras aren’t always alike.

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  10. Health & Medicine

    Cheap shots — typhoid vaccine shows broad coverage

    Vaccine protects against typhoid across age groups and is especially effective in young children.

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  11. Life

    Beetle masters optics

    Researchers may gain inspiration from the shell of Chrysina gloriosa, which twists light in a particular way.

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  12. Animals

    Toucan’s bill gives big chill

    Bird’s supersized bill can switch personal air conditioning on and off, new research suggests.

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  13. Paleontology

    Fossil shows first all-American honeybee

    Nevada find contradicts long-held view of Europe and Asia as the native land of all honeybees.

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  14. Science Future for August 15, 2009

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  15. Force and Motion: An Illustrated Guide to Newton’s Laws by Jason Zimba

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  16. Life

    Book Review: The Root of Thought: Unlocking Glia–The Brain Cell That Will Help Us Sharpen Our Wits, Heal Injury, and Treat Brain Disease by Andrew Koob

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  17. Tackling toxicology and environmental health

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  18. Venom hunters

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  19. Planetary Science

    Stars go kaboom, spilling cosmic secrets

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  20. Smart from the start

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  21. Letters

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  22. Science Past from the issue of August 15, 1959

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  23. Shorebirds of North America, Europe, and Asia: A Photographic Guide by Richard Chandler

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