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TIL a Chinese doctor spent 6 years illegally building a mountainous stone penthouse on top of a residential urban tower, “complete with boulders, trees, gardens, pools and ponds.”

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Bg68b TIL - The military–entertainment complex is the cooperation between militaries and entertainment industries to their mutual benefit, especially in such fields as cinema, multimedia, virtual reality, and multisensory extended reality.
BrWBD TIL President Kennedy wanted to go to Mars not the Moon – but engineers told him it was 'a little bit too far'. Nasa told him it would take at least 15 years before we could put a man on the Moon after a weekend of intense calculations
X17X TIL Firefighters use water to fight fire becasue it expands to steam and displaces oxygen, not because it cools the fire down
4XG5N TIL That 16000 Hz Sine Waves are used by some grocery stores to deter teenagers after curfew. The reason these sounds work is because kids and teens hear them, but adults can’t. This is caused by the ears’ “age”. For people in their 30’s and older, they can’t hear these specific 16000 Hz sounds.
jNxrE TIL that the first female state senator elected in the United States was a Mormon polygamous wife who ran against and defeated her own husband.