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TIL that QWERTY keyboards were invented to prevent typewriters from jamming. Following its invention, the Dvorak keyboard was introduced and was said to improve typing speed by 5-10% but still is not widely used.

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9Y7dm TIL the Bill and Melinda Gates Foundation donated $4M to help stop malaria in a plan to create genetically modified non-biting male mosquitoes released to mate with malaria-carrying wild females, giving birth to progeny that dies before reaching the human biting age.
D1lXp TIL that the blast of hot or cold air from above entrances is called an 'air door'. It prevents inside and outside air from mixing, increasing a buildings power efficiency as well as keeping out dust and insects.
aM5b TIL One of the worst nuclear disasters involved 112,000 Brazilians being inspected after a piece of radiotherapy equipment was stolen. One man wanted to make his wife a ring from the glowing blue powder. She died.
nWe0P TIL that the largest organ in Europe is in St Stephen's Cathedral, Passau, Germany.
YRyW TIL German General and World War I hero Paul Von Lettow Vorbeck told Hitler to go fuck himself when he offered him an ambassadorship.