› added 11 months ago

41

TIL only mammals have alveoli.

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VBJwD TIL the largest non-rigid airship ever flown was in 1958. It was 122.8m long and 36.6 m high, had a crew of 21 people and a maximum speed of 128 km/h (80mph)
rRyyM TIL skid marks are not caused by pieces of rubber from the tire being deposited on the road. Skid marks are actually bituminous oils in the asphalt that are heated because of the friction of braking or accelerating rising to the surface, leaving dark marks.
9wl6Q TIL Some people eat grapefruit with a grapefruit spoon, a serrated spoon used to separate the flesh from the rind.
69oR7 TIL that the artist Caravaggio's first name was Michelangelo
d8X9E TIL of Dr. Mary Walker, the only woman ever to receive the Medal of Honor (and, then have it taken away, and then given back...)