› added 6 years ago

102

TIL - Airline Engine Manufacturers occasionally test how well their engines can withstand the impact of a flock of birds. To do this, they use what is called a "Chicken Gun"; where they fire dead chickens into a running engine through a large diameter cannon.

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6EDpX TIL nearly half of all people who have heart attacks don't realize it at the time.
JO41 TIL that while serving time in prison, rapper Tupac Shakur was asked for his autograph by a skinhead who said it was for his younger cousin. Tupac obliged, later saying that it made him feel like he accomplished something.
LQk1p TIL that an older woman of 70, Chau Smith, ran 7 marathons on 7 continents in 7 days
9wQlr TIL, Contrary to what I was taught in school - The Great Wall of China is NOT visible from the moon or space in general. At best, it is visible from the low orbits under very favorable weather conditions. Some other earthly structures, e.g., desert roads, have much higher visibility from space.
xVgED TIL that Sun isn't center of the solar system and actually orbits the real center - all objects in our system (especially Jupiter) influence the barycenter which planets and sun orbits.