› added 9 years ago

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TIL that scientists have developed a substance so black, the human eye can’t comprehend what it is seeing

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via reddit.com

KY8nB TIL that human babies release hexadecanal, from their heads, which lowers aggression in males but increases aggression in females. This lowers male driven infanticide while making females/mothers more protective of their offspring.
v1pr TIL that Seth Green bases Chris Griffin’s voice on Buffalo Bill in Silence of the Lambs.
R7wbw TIL that the first paramedics were 25 African Americans in Pittsburgh, trained through the Freedom House Enterprises which was a program championed by an activist and the doctor who invented CPR, in 1967.
8aKgb TIL Quarantine is from Italian 'quaranta giorni', meaning "forty days", used in 14th-15th-century Venetian dialect and designating the period that all ships were required to be isolated before passengers and crew could go ashore during the Black Death plague epidemic
neBg9 TIL Thomas Edison listened to the piano through his teeth. As he was completely deaf in one ear and could barely hear in the other he would chomp into the wood of the piano and absorb the sound waves into his skull.