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  1. Tech

    Powering the Revolution

    Sensors and other electronic devices that can scavenge energy could open a new realm for technology.

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  2. Ecosystems

    Slime Dwellers

    The health of corals, and their adaptability in the face of adversity, may rest largely on the microbes they recruit into a slime that coats their surfaces.

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  3. Humans

    From the May 22, 1937, issue

    Hidden beauty revealed, an electric french horn, and safer toy balloons.

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  4. Earth Portal

    This Web site, created by the National Council for Science and the Environment, is a comprehensive, free, and dynamic resource for timely, objective, science-based information about the environment built by a global community of environmental experts.