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TIL About the rectoanal inhibitory reflex (RAIR), which is what provides the upper anal canal with the ability to discriminate between flatus and fecal material. It allows for voluntary flatulation without also eliminating solid waste.

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MeGn8 TIL About Kim Yong-ju. the younger brother of Kim Il-sung (north korea founder) is still alive and is 99 years old
E1N7W TIL when Mr. Potato Head was first introduced, parents were expected to supply their own potato. Federal regulations made the pieces less sharp, so Hasbro was forced to include a plastic potato with pre-made holes.
KvkJ TIL of MASSIVE, a software package used to generate thousands of actors with their own artificial intelligence. It was used to generate the battle scenes in the Lord of the Rings films.
p8PEp TIL that on 5 May 2000 two young Filipino programmers created the Iloveyou virus that attacked tens of millions of Windows personal computers causing US$5.5–8.7 billion in damages worldwide. Since there were no laws in the Phils. against writing malware at the time the two were released.
BgQ5k TIL that by 1965, boxing legend Sugar Ray Robinson became broke, having spent all of the $4 million he made during his career. When honored with a huge trophy after his final fight, he was so poor that there was not a piece of furniture in his apartment that was strong enough to support it.