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TIL about LIDAR, similar to SONAR and RADAR, this technology bounces light off of the Earth to map features of the land. Even peering through dense forest, it's changing how all sorts of fields of study see the land's topography.

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rNaaw TIL: The B-52 Bomber,known for its iconic design and long service history,holds an impressive array of world records,showcasing its remarkable capabilities.One notable achievement occurred on September 26,1958,when a B-52D model set a world speed record by reaching an astonishing speed of 560.
Z8Y5v TIL It is legal in in 45 US states for doctors and medical students to perform pelvic exams on unconscious women for medical training, without explicit consent. This may also be done during consented medical procedures that are unrelated to gynecology.
OGB11 TIL The Chicago Sanitary & Ship Canal was built to better connect Chicago to the Mississippi River, and was the world’s largest canal at the time. It provided engineers with the necessary experience to help construct the most pivotal infrastructure project in US history - the Panama Canal.
lvPG TIL that a man spent 121 days in room with 40 venemous snakes in an attempt to break the Guinness World Record of 107 days, only to be told that they no longer maintain that record after achieving it.
E1eQp TIL about the "Coolidge effect," male animals preferring to mate with new females. Pres. Coolidge and his wife visited a farm, & Mrs. Coolidge learning a rooster mated a dozen times a day, said "Tell Mr. Coolidge." Pres. Coolidge told the rooster had a new hen each time, said "Tell Mrs. Coolidge."