› added 4 years ago

144

TIL sound can be focused into a singular spot with an acoustic lens like light with an optical lens

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xVOOD TIL that during WWI, the Germans tried to convince the Allied soldiers at Dunkirk to surrender using propaganda leaflets dropped from the air. The soldiers used these leaflets as toilet paper.
QvyL TIL China had plans for the 2008 Olympics to utilize 30 airplanes, 4,000 rocket launchers, and 7,000 anti-aircraft guns with various chemicals in an attempt to stop rain.
BBYb TIL Colonel Remy Van Lierde DFC took a photograph of 50ft snake while flying over the Congo in 1959. Stating the snake rose up 10ft to attack the helicopter he was piloting
Wkm4X TIL In Japanese tradition, rabbits live on the Moon where they make mochi, the popular snack of mashed sticky rice. This comes from interpreting the pattern of dark patches on the moon as a rabbit standing on tiptoes on the left pounding on an usu, a Japanese mortar.
YEgZ TIL More people live in California than Canada.