› added 4 years ago

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TIL: Wilbur & Orville Wright's father gifted them a toy helicopter (based on an invention of French aeronautical pioneer Alphonse Pénaud). They played with it until it broke, and then built their own. They later pointed to their experience with the toy as the spark of their interest in flying.

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R7mR8 TIL the 30s gangster movie that Macaulay Culkin used for his sound effects in Home Alone was actually a fake movie designed specifically for Home Alone.
WkMY8 TIL an FDA study requested by the military found 90% of more than 100 drugs, both prescription and over-the-counter, were still safe & effective even 15 years after the expiration date. Expiration dates don’t really indicate a point at which the medication is no longer effective or unsafe to use.
E1nKp TIL that the climate of the Sahara undergoes enormous variations between wet and dry every 20500 years due to a tilt in the earth.At present (2018 AD), we are in a dry period, but it is expected that the Sahara will become green again in 15000 years
gMNbA TIL that in 2013 Detroit was so broke that they were unable to print out death certificates because they had not been able to pay the company that provided the special embossed paper on which they were printed, and subsequently ran out.
pk44 TIL if a female dog grows in the womb between two male dogs, she may turn out to be a “tomboy” due to testosterone exposure and demonstrate masculine behaviours such as lifting her leg to pee.