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TIL that during WWI the British built a submarine armed with the gun of a battleship

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EgxJp TIL: alan smithee is an alias used by film directors who don't want to use their name so as not to be associated with a bad production or when they don't like the result. This happens in cases like hellraiser 4 and even has a reference in The Simpsons.
0kYy TIL of “RISUG”; a cheap, 100% effective contraceptive for men, that lasts for 8-10 years without side effects, but has yet to reach the public due to lack of funding and volunteers.
LkbPZ TIL that one Golden poison frog contains enough toxin to kill 10 to 20 people. It can be found in the Pacific coast region of Colombia in South America and is a social animal—living in groups of up to six frogs.
wQOJ TIL Passengers leaving Hawaii on Alaska Airlines can travel with one “properly packaged” box of pineapples as checked baggage for free.
GYOl1 TIL: In order to get improvements in their job security amidst the emergence of a rival bus line, bus drivers in Okayama, Japan decided to go on strike in a unique way in 2018. While on strike, they supported the community by continuing to drive their routes, but simply not charging customers.