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TIL that the 2014 Nobel Prize in physics was awarded to the three men who invented the blue LED. Until their discovery in the 90s, white LED lights couldn't be produced.

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8MDV TIL the pilots of the Looking Glass (the always-airborne doomsday command center) were originally required to wear an eye patch to protect one eye from blindness in the event of a surprise nuclear strike.
j67kM TIL Mike Myers, Eddie Murphy, and Cameron Diaz negotiated an upfront payment of $10 million each for voicing the sequel to Shrek (2001). This was an increase from the $350,000 each received for the first film. Also, the three actors were expected to each work between 15-18 hours in total on Shrek 2.
WoP9 TIL that 101 years before Rosa Parks and Claudette Colvin, an African American woman named Elizabeth Jennings refused to be removed from a New York City trolley. Her case in the Brooklyn Circuit Court led to the desegregation of all NYC trolley lines. Her attorney? Future president Chester A. Arthur
pY7oN TIL of Jonathan R. Davis a prospector in the Old West, who killed eleven outlaws in a standoff, all at once.
a8Ojo TIL giraffes are 30 times more likely to get hit by lightning than people.