Feature

  1. Accelerated Weathering Tests Building Materials

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  2. Modern Chemistry Finds Why Greeks Prized Famous Spring

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  3. Mythical Gun That Aims Itself Seems Impossible to Silence

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  4. Wool Made Unshrinkable by New Revolutionary Invention

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  5. First Glances at New Books

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  6. A Tower to Stop the Sun

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  7. New Mountain Highway Will Have Nine Tunnels

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  8. In Science Fields

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  9. Plane Eclipse Pictures Show Million-Mile-Thick Corona

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  10. Arctic Canada Had Gold Rush in 16th Century

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  11. Fossil Man of China Now Considered Oldest Human

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  12. Front Matter

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