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TIL That Luxembourg is aggressively pursuing space mining

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Wkyjd TIL Every military working dog is an NCO - in tradition at least. Some say the custom was to prevent handlers from mistreating their dogs; hence, a dog is always one rank higher than its handler.
v1Pp4 TIL that an author wrote 'Vienna without Jews' in 1922. 16 years later, jews were hunted down under Hitler's command
5RMD TIL - A man made a pain scale after being stung or bitten by over 80 different species of insects. The descriptions really bring it home.
nyPd TIL that some groups of bolts are “safety wired” together, so if one starts to loosen it automatically tightens the other
Ll0m TIL Vladimir Putin is a black belt in Judo and produced an instructional video called “Lets Learn Judo with Vladimir Putin” in 2008.