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TIL that a Blink Comparator is a mechanical device for visually comparing two similar images. In 1930, it was instrumental in the discovery of Pluto.

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4Xa5g TIL of "starlight tours", a practice of the Saskatoon police that involved arresting Canadian indigenous people and dropping them off oustide city limits to freeze to death. It went from the 1970's to the early 2000's.
p8eE4 TIL John Adams called Christianity a "fresh revelation" but if there was no Heaven; his advice to every man, woman, and child would be to take opium.
6ekl TIL that so many British people make tea after the tv show “Eastenders” finishes, that backup power stations go on standby to cope with the massive surge in electricity
kOPxE TIL that when a child actor is cast in California, a trust fund, or Coogan account, is setup to store at least 15% of their earnings. This was after the parents of Jackie Coogan, a child star from some early Charlie Chaplin movies, squandered nearly all of his fortune before he reached adulthood
R7yAl TIL 39th richest person in the world is Li Ka-Shing (!) with $28.9B net worth.