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TIL deuterium, one of the ingredients for nuclear fusion, is readily found in seawater and viewed as a potential fuel for a fusion reactor. A gallon of seawater can produce as much energy as 300 gallons of gasoline.

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PYymn TIL Traudl Junge worked as Adolf Hitler's last private secretary, from 1942 to 1945, typing out his last will and testament the day before his suicide. At 22, she was the youngest of his private secretaries, and years later said she felt guilty for, "liking the greatest criminal ever to have lived."
e0dgk TIL that the reason why 420 is associated with weed is because of some high schoolers in the 1970s. 4:20 pm was the perfect time to goof around and smoke weed. It’s right after school and before parents got home. It just ended up being code for smoking weed.
K1xw TIL after a female pedestrian in his community was killed by a red-light runner, a 74 year old Chinese man spent an entire day hurling bricks at bad drivers. He smashed over 30 red-light runners’ cars before the police asked him to stop.
YvJP TIL Red placebo pills are more effective than Blue placebo pills
GYyQg TIL Redheads are more likely to have anxiety about, and avoid going to, the dentist because the same gene mutation that gives them red hair also makes them 20% more resistant to the effects local anaesthesia.