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TIL oranges are sold in bright red net bags because the colour of the net deepens the perceived colour of the fruits - this is called Munker's illusion

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OGQOa TIL “Roots” was watched by an estimated 140 million viewers, with 85 percent of all television homes seeing all or part of the miniseries. Before Super Bowl 57 last year, it was the largest tv viewership ever in US history.
ZpKAR TIL about Belphegor's prime: 1000000000000066600000000000001
N7kyQ TIL that on May 19th 1989, CBS broke into their primetime programming for over half an hour to broadcast a live dispute between the CBS News team and representatives of the Chinese government. (The government was terminating all foreign broadcasts in a lead up to the Tiananmen Square Massacre.)
e04pJ TIL that there are no remaining male mourning geckos and so to reproduce, females engage in foreplay like behaviour with each other and then produce eggs asexually.
D1gQe TIL MI5 estimates there are as many Russian agents in London now as there were at the height of the Cold War.