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  1. Human, Mouse, Rat . . . What’s Next?

    Scientists lobby for a chimpanzee genome project.

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  2. 19371

    One of your sources in this article claims, “After all, even the sacred first law’s conservation of energy breaks down in the quantum realm, albeit in a limited way, he notes. That’s because Heisenberg’s uncertainty principle allows energy momentarily to appear from nothing, although it must be quickly paid back.” This claim is heard occasionally, […]

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  3. Physics

    Breaking the Law

    Can quantum mechanics + thermodynamics = perpetual motion?

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  4. Math

    Global contest nets encryption standard

    A data-scrambling scheme called Rijndael was selected to become the federal government's new formula for protecting sensitive, unclassified information.