› added 11 years ago

110

TIL in 1997, the USS Yorktown’s entire propulsion system failed after attempting to divide by zero

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oBEY7 TIL each F-22 Raptor jet costs 334 million dollars (give or take) plus about $60,000 for every flight hour, and during 40% of it's lifespan is in the shop for maintenance and the USAF owns and pays for all 186 in existence.
LQdA9 TIL of "menu anxiety" which is defined as distress caused when ordering a meal at a restaurant. A survey showed that over 30% of Americans experience it. Of those who do, some try to avoid it by obsessively reviewing the menu online before showing up to the restaurant.
ADrR7 TIL that Dave Grohl does not read Music but perceives it through Ear and Intuition. He also perceives the Guitar as a Drum Set.
9Bn7 TIL that one of the missions Apollo 15’s crew did in the moon was to make an experiment, using a feather and hammer, to demonstrate Galileo’s theory that all objects in a given gravity field fall at the same rate, regardless of mass.
4nkR TIL it rarely ever snows in Antarctica. The snow there has been accumulated over many years and the temperature never rises enough to melt it.