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TIL in 1947 Raytheon built the first commercially available microwave oven. It weighed 750 pounds, was water-cooled and cost about US$5,000 ($61,000 in 2021 dollars).

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QgwX TIL Weird Al Yankovic said he knew he’d made it as a famous musician when he went to a party, saw Paul McCartney and before he could introduce himself to the former Beatle, McCartney recognized him and said, “Hey! It’s Weird Al!”
woDO6 TIL Donald Watson, who coined the word vegan, said he got the term from the word vegetarian by taking its first three letters and its last two letters because "veganism starts with vegetarianism and carries it through to its logical conclusion".
1a99D TIL about Malone Mukwende. He is actively creating a free medical handbook on skin conditions for POC to bridge the gap of exclusively caucasian examples of various skin afflictions in his medical textbooks.
OoWV7 TIL of Rostilov Romanov, a Russian artist and prince who is descended from the Romanov family that was assassinated during the Russian revolution in 1918. It is a common misconception that the line died with them. His wife and friends refer to him as “the artist formally known as Prince”.
e0YjD TIL: There are locations on planet Mercury where during a day the sun will appear to pause, reverse direction, then continue forward again as it moves across the sky. This happens as the planet’s angular orbital velocity and angular rotational velocity flip as it crosses perihelion