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TIL that Harry Houdini was always skeptical of the mediums that prayed on vulnerable people, so he tried to contact his dead mother, Cecelia, in 1922. It was a fail because the medium, Lady Doyle, wrote down what his mother was apparently saying in English, which was a language Cecelia did not know.

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OG9V4 TIL that there is a negative form of the halo effect, called The Horn Effect , which allows one disliked trait or aspect of a person or product to negatively influence globally. For those seen in a negative light, anything they do that is negative is exemplified, while the positive are not seen.
ADvn TIL NASA used less money ($526 billion) in it’s entire existence than the US military used in 2010 ($663 billion)
lGPK TIL that Greek women were only allowed to practice medicine after a woman disguised as a man was so good at obstetrics/gynaecology that “he” was accused of gaining clients through seducing women. She proved herself innocent of this alleged crime by flashing the court.
OoWva TIL that the jumping spider, Nefertiti, was launched to the ISS to observe if it could catch prey in microgravity. It succeeded in catching prey by learning to walk slowly, rather than leaping, as this species usually does. It survived reentry and readjusted to full gravity before its natural death.
NXE5E TIL that the Freedom Bell is a 2:1 scale replica of the Liberty Bell that was cast in The Netherlands. It was a bicentennial gift from the American Legion to the nation’s youth and sat in storage for several years before being installed at Union Station in 1981.