› added 9 years ago

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TIL that glass that has been treated with a LASER to create micro-cracks and coated with polyurethane, inspired by nacre (mother of pearl), becomes 200 times stronger

Read more ceramics.org

via reddit.com

EKw TIL Marijuana seeds are a source of all amino acids and are a complete protein
4RXJ TIL Canadian astronomer and renowned eclipse chaser J. W. Campbell traveled the world for 50 years trying to see 12 different eclipses. He ran into overcast skies every time.
neAjr TIL about metal coffins in the 1800’s that had a window so you could see the deceased’s face. Used mainly to deter grave robbers and endorsed by a President.
WkO7B TIL in 2013 Van Damme did an ad for Volvo where he stood on the mirrors of two trucks that slowly backed up and got farther apart, leading to him doing a split. The stunt was done in one take.
9Y41X TIL that thousands of poor Black women were sterilized involuntarily in several southern states by white physicians when they presented for care for other health issues. The procedure became known as a Mississippi Appendectomy.