› added 6 years ago

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TIL Germany does not have a Court Martial. Soldiers who commit crimes are tried in civilian court.

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e0715 TIL of infrasound - a low-frequency sound (19Hz and below) that cannot be heard, but literally unsettles human beings. Some horror movie music composers use this sound to make audiences feel dread just before disturbing or scary images appears on the screen.
WmwB TIL of Unit 731, a covert biological warfare research and development unit of the Japanese Army that undertook lethal human experimentation. A few of the experiments included vivisection without anesthesia and pressure chambers to see how much a human could take before his eyes popped out.
woGbY TIL in the 18 months leading up to the 9/11 attacks, CIA had 2 of the hijackers under surveillance within the US but kept it secret from the FBI
p8oQO TIL that if you add 250 ml of water with 250ml of ethanol you get less than 500ml of liquid.
jNXpN TIL that one of the first American spies was a women during the Revolutionary War. To this day, her identity is not known and is referred to only as Agent 355.