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      Scientific American March 1928

      Weighing the Earth

      The Earth's Mass Is About 6,000,000,000,000,000,000,000 Tons. How Is This Amount Actually Determined?

      • By Paul R. Heyl on March 1, 1928

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      More in the March 1928 issue of Scientific American
      • Analogous Arts, Trademarks in The Philippines and more
      • Evolution Reversed by Cornell Scientist, Sheet Steel Manufacture and more
      • New Discovery Speeds Up Evolution
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