› added 4 weeks ago

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TIL In Tug of War, there are at least two mechanisms of injury that can result in amputation

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b6X6Q TIL that some US spy satellites are named after actresses. Before a presentation to President Reagan, the National Reconnaissance Office (NRO) worried about mentioning projects codenamed URSULA, RAQUEL, and FARRAH. Reagan said "Those are friends of mine! I love those names!" NRO kept the names.
GY1G7 TIL that the content delivery network CloudFlare uses a wall of 100 lava lamps as a way to generate entropy for a random number generator
69M1J TIL darker skin people need more sunlight to make vitamin D. One experiment where a light skinned person was in sunlight for 8 hours saw their vitamin D concentration go up by 50x while a dark skinned person saw no change. They needed 5-10 times the sunlight length and then only saw a 30x change.
jQQ TIL that in most Nordic countries there are laws called “Every man’s rights” which state that it is legal to trespass, camp, fish and pick berries on public and private lands.
RYRa TIL an 80 year old man named Amou Haji hasn’t bathed in 60 years, sleeps in a grave-like hole, and smokes animal feces.