› added 2 years ago

71

TIL about a HUGE cannon, built in 1464 by the Ottoman military. It was still in combat use 343 Years later. It fired projectiles weighing over 2000lbs.

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nveB TIL bees have hair on their eyes. They are used to determine wind direction and flight speed.
71bL TIL in 2003, female A-10 Thunderbolt pilot Kim Campbell was heavily lit up by anti-aircraft munitions, flying over Baghdad. The plane lost all hydraulics, rolled left and pointed toward the ground, but after reverting to manual mode she was got control, flew for an hour, and landed without brakes.
Brory TIL of Sonoluminescense: When an underwater bubble is collapsed by sound waves, it creates light.
BggXW TIL in the 60s, Lady Bird Johnson persuaded her husband to steer a bill through Congress titled The Beautification Act of America. As a result from this law, the insulators, arresters, and transformers on electric poles were painted sky blue/grey.
e0bRg TIL the fastest land speed record is 1,227.985 km/h (763.03 mph), the fastest manned rocket-powered aircraft was 7,270 km/h (4,520 mph), and water speed record was 275.98 knots (511.11 km/h, 317.59 mph).