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TIL The largest pre-WW1 plane was built by Igor Sikorsky and was named after a Kiev Rus warrior. Sikorsky personally flew the plane from Petersburg to his native Kiev setting several world records.

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LdbP TIL - A WW2 Observation pilot got bored of not being in combat and decided to strap 6 bazooka’s to his plane destroying several tanks and armoured vehicles .
rvpW TIL the word “quintessential” is actually Latin for ‘the fifth element"
WkaA9 TIL that there is a dog-bone shaped asteroid named Kleopatra. It also has 2 moons named Alexhelios and Cleoselene.
MPWb TIL that human touch can dynamically detect something just 13 nanometers in size.
lEbB TIL chickens have special eyes. the unusual arrangement of cells in a chicken’s eye constitutes the first known biological occurrence of a potentially new state of matter known as “disordered hyperuniformity”