› added 11 years ago

82

TIL some birds display ultraviolet feather patterns that are invisible to the naked eye.

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E1bb0 Today I learned about the geodesic equation: a method used to find geodesic paths through space.
XExdE TIL about the "Angry Angel of Chinatown", Donaldina Cameron who helped more than 2,000 Chinese immigrant girls and women escape from forced prostitution and indentured servitude from 1895 to 1934.
Zjdo TIL Muhammad Ali’s star on the Walk of Fame is the only one not on the sidewalk; rather, it is on the wall of the Kodak Theatre because he bears the name of Prophet Muhammad and he didn’t want people to trample over his name.
E145o TIL that the human body literally emits light (like fireflies do), but 1/1000 times the sensitivity of naked eyes.The light emission is rhythmatic and peaks at 4 pm.
RMn9 TIL Greyhounds have a 270-degree range of vision. They can see objects behind them and over ½ mile in front of them.