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TIL a Tsar’s nephew may have accidentally caused the biggest non-nuclear explosion in history

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epDLk TIL To protect historical Steveston Village from flooding on Canada's Westcoast, there is a plan to build a $170 million dyke in the Fraser River and around an island. Because it is a working harbour, a 50m seagate would be required in the middle of the dyke
b9AGa TIL the first modern office chair failed commercially outside the US, because it was too comfortable. The Victorian morality of the time valued rigid, unsupportive seats that allowed sitters to demonstrate refinement, willpower and morality through an upright posture.
j6VJQ TIL that sand sharks fart.Yes, sand sharks gulp air at the surface which they release to achieve greater depth. This is the only shark species that farts out of the 4 to 500 shark species
OoDNX TIL In 1959, police were called to a segregated library in S. Carolina when a 9yr-old Black boy refused to leave. He later got a PhD in Physics from MIT, and died in 1986, one of the astronauts aboard the space shuttle Challenger. The library that refused to lend him books is now named after him.
oRJ18 TIL Clownfish Turn Into Females When Older