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109

TIL A science set which allowed children to play with radioactive materials at home was available between 1950 and 1951

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Z8R6R TIL The Weber–Fechner law is a phenomenon that helps explain why it is difficult to notice a woman’s hair cut, why we typically don’t think twice about an extra $150 on a $20,000 car purchase, and why a $1 savings on a $2.99 box of cereal seems like a great deal compared to a $79.99 shirt.
jN5ZQ TIL an Army Ranger got a confirmed kill using a spoon from his MRE.
Y7myx TIL Cao Xueqin is considered to be China's greatest novelist, but little is known of his life. He spent ten years writing "A Dream in Red Mansions" from 1740 to 1750 but the last chapters were written by a different author. The novel was not published until 1791, nearly 30 years after Cao's death
MeG9b TIL that the late Robert Urich holds the record for starring in the most different TV series: fifteen.
0d7Xj TIL In 2012 San Diego's annual Fourth of July fireworks show had a computer glitch, where fireworks programmed for 17 minutes all went off at once (here is one video, there are lots of others; some spectators mad, others ecstatic)