r/todayilearned

: "Til In 2019 a Japanese University student studying ninja history turned in an essay written in invisible ink. The words only became visible when the paper was heated over a gas stove. Her professor without even revealing the whole essay gave her an A."

: "TIL There was case in US where a person failed to die during electric chair execution and then his lawyers tried to argue that he was not dead but he had been executed and that it was cruel to go through a second time."

: "TIL In 2019 a Japanese University student studying ninja History turned in an essay written in invisible ink. The words only became visible when the paper was heated over a gas stove. Her professor without even revealing the whole essay gave her an A."

: "TIL that following Michael Jackson's death, his sister discovered two hard disks at her brother's home that contained more than 100 unreleased songs, many of which were unregistered. In 2010, Sony signed a deal with Jackson's estate to release 10 posthumous albums, but only 3 were ever released"

: "TIL that Petra is a female black swan who made headlines between 2006 and 2008 for falling in love with a pedalo shaped like a swan on the Aasee, a lake in Münster, Germany. Reported missing in January 2009, she was finally found on another lake, this time with a partner of her own species."

: "TIL that in the Movie "Scream" (1996) there is a section in the credits saying "No Thanks whatsoever to the Santa Rosa city school district governing board" Santa Rosa revoked permissions to film there last minute and cost the production 350,000$"

: "TIL that the first Sony Walkman had two headphone jacks so you could share it with someone else as they thought it would be considered rude to listen by yourself. This feature was removed as no one used it"

: "TIL that Blue Raspberry is largely Banana and Pineapple flavors. A bright blue dye was used because because the red Food dye of the time had been banned."

: "TIL that Japanese war criminal Hitoshi Imamura, believing that his sentence of 10 years imprisonment was too light, built a replica prison in his garden where he stayed until his death in 1968"

: "TIL that Frank Abagnale, the real-life inspiration for Catch Me If You Can, fabricated most of his infamous conman exploits, and much of his story was a hoax."