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Energy Archive

  • Security in Black and White

    Software that adds a layer of secret data provides a more versatile digital watermark to authenticate electronically transmitted images.

  • Little Engines That Can

    Need power but don’t want to plug into a central electrical utility? Microturbines are flexing their muscles in niche applications.

    1 comment

  • Alternative to Incineration

    Hot plasmas could dispose of toxic waste and produce hydrogen, without the harmful byproducts of combustion.

  • Nano's Safety Checkup

    Concerns over particle dangers could slow nanotech’s growth.

  • Gas on Ice

    New hope for extracting natural gas from solid formations adds a hopeful ingredient to the energy future.

    1 comment

  • Grids Unleash the Power of Many

    To paraphrase a wise science officer, the computing needs of the many outweigh the needs of the few. Scientists say new computing grids that put supercomputers in the hands of the masses could exponentially increase scientific discovery and spark new industries.

  • Medieval Global Warming

    A controversy over 14th century climate shows the peril of letting politics shape the scientific debate.

    1 comment

  • Letters

    Insights and opinions from our readers

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