Uncategorized

  1. Earth

    Warning: Slow down for whales

    To protect a major population of right whales, the U.S. government is proposing periodic go-slow rules for big ships passing through the animals' migration routes.

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  2. 19707

    Scientists seek environments that are weightless, near-perfect vacuums in which to conduct experiments. If genuine cloaking were achieved, I would expect there would be a host of experiments that might be conducted in “perfect darkness”—environments free of various energy wavelengths. Bernard RiceHinsdale, Ill.

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  3. Physics

    Out of Sight

    Shields that confer invisibility on objects and people may be on the horizon.

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  4. Tech

    Smells Like the Real Thing

    Chemical sensors that take cues from the mammalian pattern-based approach to identifying odors and flavors create colorful readouts that even the eyes can distinguish.