› added 4 years ago

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TIL President Kennedy was prescribed a rocking chair for back pain. He found one he liked so much he bought 14 copies for the Oval Office, Camp David, Air Force One, and homes of his family. He also gifted them to heads of state.

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jNg5v TIL that by law the US required to have at least 11 active aircraft carriers in the fleet
XEZBE TIL that superglue was more or less invented by accident in 1942, in an attempt to develop plastic gun sights for the war effort.
ZODo TIL: The German tiger tank can be killed by fighters by ricocheting bullets off the ground in front of it so they would come up under the tank’s belly and kill it.
5Vn7r TIL that bottlenose dolphins (Tursiops truncatus) each have their own distinctive whistle sounds they use to identify each other. When they hear their unique sound called out, they answer back, using their personal theme song as a way to call each other by name.
eomk TIL In Europe about 3% of the population has a panic attack in a given year while in the United States they affect about 11%. They are more common in females than males.