› 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

X00r8 TIL Softkey, founded by Kevin O'Leary, purchased many of the "Edutainment" software companies in the 1990's, acquiring Carmen Sandiego, Oregon Trail, Number Crunchers, and other titles. With questionable business practices, they were considered the major player in the downfall of this sector
78YZL TIL there are Yakult ladies that sell this fermented drink door to door in Japan and other countries. They are trained for three months before they're allowed to do this on their own and get frequent refresher training.
6rJJ TIL Soaking up grease from a slice of pizza with a napkin saves you about 40 calories.
wLeK6 TIL Richard Attenborough, the actor who played John Hammond in the Jurassic Park movie, is the eldest brother of narrator David Attenborough.
Eg6QX TIL in 2013 businessman Tan Youhui hired a hitman to take out a competitor. That hitman hired another and so on ending up with 5 hitmen subcontracted for the same job and the plan falling apart.