Waves and Their Applications in Technologies for Information Transfer

  1. Physics

    Explainer: How a synchrotron works

    Giant magnets direct superfast light into beams up to 30 million times as bright as those produced by a laser pointer.

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  2. Animals

    A Sense of Danger

    Can animals warn us if an earthquake or some other natural disaster is about to strike?

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  3. Tech

    Electronic paper turns a page

    Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.

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  4. Tech

    Cell phones and possible health hazards

    Radiation from some cell phones appears to kill brain cells in rats.

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