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MSG Thomas Currie
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I'm not sure that some of those should be called "inventions" -- some clearly are, but others (such as the Dodecahedron) seem to be more "curiosities" rather than inventions.
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SGT Carl Blas
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E756b8f9
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LTC Trent Klug
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I had seen and read about the Chinese seismograph when I was in high school. Pretty cool. Greek fire is probably best left to history, but I'm sure we know how to make it. The rest are just neat little gizmos.
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