› added 6 days ago

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TIL that by releasing a massive bolt of electricity, lightning is five times hotter than the sun when it strikes. But the average lightning strike lasts only 30 microseconds.

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via reddit.com

m5WP TIL: The first item sold on ebay was a broken laser pointer, and when asked in an email by eBay founder Pierre Omidyar if he was aware that the laser pointer was broken, the buyer replied that “I’m a collector of broken laser pointers.”
rNaXx TIL of the COMEX Hydra VIII experiment, where a team of professional divers dived to a depth of 536 m/1,752 ft while breathing Hydreliox, breathing gas consisting of 49% hydrogen, 50.2% helium and 0.8% oxygen
W7kEd TIL that the “sailing stones” in Death Valley move in very short 15 minute bursts due to a very specific combination of rain, freezing temperatures and wind.
KYyka TIL that Champion U.S.A. invented hoodie in 1930s and marketed to laborers working in freezing temperatures in upstate New York
oBPKW TIL diamonds are used as conflict gemstone's because they are much more common than other stones -- not because of their value.