› added 5 years ago

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TIL bee hives are kept on top of Notre Dame to increase urban biodiversity

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ADdvd TIL: In 1943 a flying jeep prototype was designed with a 40 foot rotor on the roof along with a tail fairing and fins, but no rudder. In Sept 1944 it was successfully flown for 10 minutes at an alt. of 400 feet, after being pulled up and released by a Armstrong Whitworth Whitley bomber.
D1gAP TIL that a nun in a convent in France began to meow like a cat; shortly afterwards other nuns also meowed. At last all the nuns meowed together every day for several hours. They finally stopped after they were informed that they will be whipped until they promised not to meow any more.
0wwd5 TIL about the Dunbar’s number. It is a theoretical upper limit of the people one can maintain stable relationships with. Suggested between 100 and 250. So if a town’s population is below the Dunbar’s number, it is more likely to have harmony and peace that a larger town or city.
awonN TIL Since its founding in the 1960s, the brand Vans has become a staple of American footwear culture, on the level with iconic brands like Converse (which is twice as old) and Nike (which is nearly 10 times as large)
0wdNp TIL: That "Batman: Gotham by Gaslight" is the first officially published Elseworlds title, though it does not carry the Elseworlds logo.