› added 5 years ago

70

TIL that most symbols we use in mathematics can be neatly categorized into the following categories: constants, variables, delimiters, operators, relational symbols and notational symbols

Read more mathvault.ca

via reddit.com

yVvMw TIL that The "Immortal" Jellyfish (Turritopsis dohrnii) resets when damaged and transforms back into a polyp
OVZe TIL that watermelons and pumpkins are classified as berries.
p8ZPZ TIL that various Nazis used a secret codeword to get exclusive service at a Nazi run brothel. Joseph Goebbels enjoyed “lesbian displays”, and an SS general enjoyed an all-night orgy with 20 girls. The building was tapped. Mussolini’s son in law was recorded expressing negative opinions of Hitler.
4Znw TIL The remains of an 18th-century ship were found in 2010 while excavating the Wolrd Trade Center site
Br9Jb TIL that Logic’s song ‘1800-273-8255’ saved hundreds of lives because it is the number for the suicide prevention hotline, says study. After he performed the song in 2018 at the Grammys, suicide rates among 10-19 year olds dropped by 5.5 percent.