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TIL what the Fujiwhara effect is when two hurricane/cyclones converge

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Z8J4a TIL the ZZ Top song "Master of Sparks" is based on a true story of people who used to weld together a spherical cage with a seat inside and then push it off a truck going 60 MPH with a person inside. Whoever survived got the title of Master of Sparks - one of them was ZZ Top guitarist Billy Gibbons.
KOpwR TIL that before trees (~400 million years ago) the Earth's landscape was dotted with 24ft tall, 3ft wide mushroom spires called Prototaxites
e0GWb TIL that shrapnel is named after its inventor - General Henry Shrapnel
KOJPw TIL in 1998, Disney's copyright on Pluto, set to expire in 2003, was extended by the passage of the Sonny Bono Copyright Term Extension Act. Sonny Bono was an American singer-songwriter, producer, actor, and congressman who came to fame in partnership with his second wife Cher.
XEJKQ TIL That an illiterate retired guard in his 70s saved many of Timbuktu’s priceless manuscripts during the 2012 Al Qaeda occupation of the city, by smuggling them out of the city at night in rice sacks, in a cart. Jihadists went on to burn whatever manuscripts were left.