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732

TIL A simple laser procedure can turn brown eyes blue

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7rglL TIL After cigarettes were first linked to lung cancer, cigarette companies attempted to make them healthier by adding asbestos filters.
5YAR8 TIL the first case of artificial insemination by donor occurred in 1884 when a doctor took sperm from his "best looking" student to inseminate an anesthetized woman. The woman's infertile husband approved of the procedure, but the woman wasn't told what was happening.
OGOG1 TIL that in 1959 the United States Postal Service tried delivering mail with a cruise missile
eZGD TIL that Alfred Binet, original inventor of the IQ test, created the methodology to identify students who needed help, and deplored its use as a ranking for a unitary and linear intelligence.
LQMgv TIL When the crocodile’s jaws work, the tear ducts are stimulated and hence the impression that the crocodile is crying over its food. That's why a false, insincere display of emotions is called "crocodile tears"