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Channel Tunnel is longer than the circumference of the Large Hadron Collider.

Created by orthonormal on 2015-05-16; known on 2015-05-17; judged right by orthonormal on 2015-05-21.

  • orthonormal estimated 60% on 2015-05-16
  • KnaveOfAllTrades estimated 47% on 2015-05-16
  • KnaveOfAllTrades said “Intentionally unmarked or shall I judge it?” on 2015-05-16
  • ffwaff estimated 45% on 2015-05-16
  • orthonormal said “It made a nice calibration question, so I gave people time to predict before looking up the answer.” on 2015-05-21
  • orthonormal   judged this prediction right on 2015-05-21.
  • orthonormal said “LHC circumference: 27 kmChannel Tunnel length: 50 km (38 km undersea)” on 2015-05-21