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Police across the US are training crime-predicting AIs on falsified data

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b9wG4 TIL The chemical in catnip and silver vine, iridoid nepetalactol, that turns cats on is actually a mosquito repellent. Cats have evolved an endophin response to plants with this chemical to protect themselves from bites on the face. They aren't just having fun.
x6aXD TIL that on 15th August 1939, two weeks before the outbreak of Ww2, the luftwaffe lost 13 Ju-87 Stuka in a minute. The incident is know as "Nuehammer Stuka Disaster".
Wpy9 TIL that in 1936 a patent for a “flying saucer” called Aerodina Lenticulara was applied for. The same inventor is also credited by some with the world first jet in 1910. In 1905, he also built a missile-aeroplane for the Romanian Army.
4X5Kg TIL Valérie André was the first woman to fly a helicopter in a combat zone, piloting 129 helicopter missions between 1952 and 1953. André rescued 165 soldiers and twice parachuted into combat to treat wounded soldiers. André became the first French woman to achieve the rank of General Officer.
grE4y TIL that how ‘Lubrication' provided by tiny air bubbles released from under the feathers could allow penguins to gain enough speed to leap out of the water and onto the ice shelf And scientists are mimicking this robots.