Feature

  1. Front Matter

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  2. An Old Familiar Tale

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  3. Revealing Omissions

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  4. Twenty Years of Calculatoritis

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  5. Tactile Vision

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  6. Subatomic Particles Make a Noise

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  7. Chemical Dumps: A Growing Problem

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  8. Estrogens and Cancer: More Questions

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  9. Viral Arms and Hinges at 2.9 Angstroms

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  10. Largest Known Prime Number: $2^{21,701}$-1

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  11. Federal Disaster Unit: Recombinant FEMA

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  12. Report Cards for Reactors

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