› added 5 years ago

88

TIL Friday the 13th occurs at least once a year every year, but can occur up to three times in the same year

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wMjM TIL that modern Peanut Butter was invented as a source of protein for people with no teeth
p8OGA TIL that in 2010, the Royal Mail turned 10 classic British albums into postage stamps, including albums by Pink Floyd, Led Zeppelin, the Rolling Stones, David Bowie and Blur.
awJdZ TIL The term 'Introvert and "Extrovert" was defined by Carl Jung in the 1920's in his completely scientifically untested personality theories. It is the grandfather of most personality tests including the most popular Myers Briggs which is wholly considered pseudoscience by modern psychologists.
l7R9K TIL Metabolism in adulthood does not slow until the age of 60
oBK4o TIL Obsidian can be made into surgical scalpels by flint knapping, creating an edge only one molecule wide and the edge is so smooth and sharp it can cut between cells.