› added 4 years ago

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TIL why the cut apple turns brown. It turns out that the enzymes and polyphenols in the apple react with oxygen; now some apples on the market will not change color because they have been genetically modified.

Read more todayhealthonline.com

via reddit.com

4Ejg TIL in 1961 a B-52 broke up over Goldsboro, NC dropping two 3.8MT H-bombs, each exceeding the yield of all detonations in worldwide history by TNT, gunpowder, conv. bombs, and the WWII nuclear blasts combined. One came perilously close to detonating and creating “a very large Bay of North Carolina.“
wDNE TIL that the fake snow in Wizard of Oz was made of pure asbestos
9aym TIL: The UV index was invented by three Environment Canada scientists in 1992, making Canada the first country to measure the strength of UV rays. The World Health Organization (WHO) adopted the index in 1994, making it a global standard. The UV index celebrates its 25th anniversary this year.
BgBBe TIL an airline once put 400 squirrels through a shredder
yQrr8 TIL: The Soviet K-429 nuclear submarine sunk twice and then became a training sub