› added 4 years ago

167

TIL: how bullets are made.

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via reddit.com

Bg8vx TIL Walmart ended the sale of pet fish in its stores in 2019. Some estimates said that Walmart was responsible for up to 30 percent of tropical fish sales.
AvMl TIL The British built an SR-71 like aircraft made from steel mixed with titanium. It didn’t reach its full potential, but provided key research for the supersonic engines used in the much more successful Concorde airliner.
69myY TIL in the 1990s a man gained an edge on a Spanish casino by recording roulette wheel results & analyzing them with a computer. He was able to predict certain numbers were more likely to hit next. After he won €600K, a legal case against him was unsuccessful; it ruled the casino should fix its wheel
a84nN TIL Neapolitan ice cream's colors were originally green (pistachio), white (vanilla), and red/pink (cherry) to resemble the Italian flag.
v8LB TIL 40 million people in China live in caves.