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TIL There's a strong correlation between social mobility and equality, an unequal society will have stagnant social classes, in fact out of 8 countries studied the USA, the country with the highest inequality, also had the worst social mobility while Denmark, the most equal, had the best

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XjGP TIL actors who play James Bond “give away their rights to wear a tuxedo in any other film” and that this was circumvented by Pierce Brosnan in The Thomas Crown Affair by wearing an unbuttoned shirt and a white bow-tie which wasn’t tied around his neck.
P1JEJ TIL about buzz pollination, or sonication—a technique in which certain bees use vibrations to remove and collect pollen from flowers.
MjDa TIL There’s a town in South Australia which is almost entirely underground.
GYVLj TIL that following the crash of a commercial airplane he owned that killed all 223 passengers, three-time Formula One World Champion Niki Lauda investigated the crash and found that thrust reversers caused it, he got Boeing to admit fault and change the design of the 767 airplane
M7YNa TIL nacreous clouds, also known as polar stratospheric clouds, are often visible in polar regions during winter. These rare clouds form at high altitudes in the stratosphere, about 15 - 25 km above the Earth, their stunning colors are caused by the diffraction of sunlight through tiny ice crystals.