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105
Created
May 6, 2020 (6y ago)
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0
  1. AR3038: A giant sunspot that has doubled in size in only 24 hours (techexplorist.com)
    2 points 0
  2. Royal Medal of Recompense (en.wikipedia.org)
    1 points 0
  3. Volcano Watch – Tiny changes at Mauna Loa’s summit hold big clues (usgs.gov)
    2 points 0
  4. Grammy Award for Best Recording Package (en.wikipedia.org)
    1 points 0
  5. Natural Nuclear Fission Reactor (en.wikipedia.org)
    7 points 0
  6. The Principles of Scientific Management (en.wikipedia.org)
    1 points 0