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TIL: When identical twins reproduce with identical twins the resulting children are genetically indistinguishable from full siblings

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e0eDn TIL of Peter Freuchen, who crossed 1,000 km of ice via dogsled, freed himself from an avalanche with a shiv made of his own feces, wrote 12+ books & was editor-in-chief of a women's magazine, escaped a Nazi prison despite having lost a leg to frostbite, and wrote/acted in an Oscar-winning film.
XEDnr TIL the sea route that Titanic sunk on should have been populated by many other ships, which could have saved victims of the sinking, however, ships transferred their coal to Titanic in port so she could make the date of her voyage, resulting in the area being virtually isolated when Titanic sunk.
64KQ TIL That the X-rays from an atomic bomb are so powerful, they can compress lithium until it causes a fusion explosion… even without the shockwave. Its called a “Teller-Ulam” nuclear weapon, and it uses an atomic bomb as a “spark plug”.
D1W9r TIL The creator of Clarissa Explains It All had a strict rule about not allowing the color purple on set, requiring parts of the set to be repainted. When asked about this rule, he revealed that it was completely arbitrary, only existing to make him seem more assertive as someone new in the business
GVK1 TIL Nikola Tesla planned to secretly experiment on children, lining the walls of schoolrooms with high-voltage lines, believing that exposing them to the energy would make them healthier and smarter, and he believed every home in the future would soon do likewise.