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TIL Costa Concordia rescuers had to to do a 3 days training in the mountains to learn how to endure the tilt shift of the boat for rescue efforts

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7rV1Z TIL The Viking Rollo, first ruler of Normandy, was called "Gaange Rolf" or "Walking Rolf" because he was too heavy for any horses to carry and had to walk everywhere
KYjyE TIL about fetus in fetu, a rare condition where a malformed twin is found inside the body of its sibling. This happens when one twin is absorbed by the other during early development. The parasitic twin can survive for years undetected, feeding off the host's blood supply.
A1Lx TIL building a time machine is believed to be scientifically possible but requires building a gigantic particle accelerator in space, stabilizing space-time foam, plucking out a wormhole, enlarging it and connecting it a gravitational field.
mOVx TIL licence plates in the Canadian Northwest Territories are shaped like polar bears.
KOKa6 TIL about Superhabitable planets. This is a recent definition/category of planets or moons that must meet much more criteria than just being in the "Habitable Zone/Goldilocks Zone". No planet or moon has met these criteria as of yet, although the planet Kepler-442b is the closest to this definition.