› added 10 years ago

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TIL that those who know Superman’s secret identity include Batman, Supergirl … and Muhammed Ali.

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w0XJ TIL that scientists have invented a new, lighter steel that’s as strong as titanium
6E6mW TIL of Jack Unterweger, an Austrian serial killer. After murdering an 18-year-old girl, he got a life sentence, but became an author and campaigned to get himself released after just 15 years. He then became a reporter, reporting on his own crimes as he proceeded to kill at least 9 more people.
RW4Q TIL the term Elbow Grease was started as a prank on apprentices. The apprentices was told to ask someone for the ‘elbow grease’ and would be sent to more and more workers. It was similar to sending a child on a Snipe Hunt.
mxwrE The first ever YouTube video was uploaded 15 years ago today
RP96 TIL that “Adrenalin” is a pharmaceutical trade name. The scientific name for the hormone generated by the Adrenal gland is Epinephrine.