› added 7 years ago

116

TIL the birds don't have external ears like us (owls are an exception). The ears are below their eyes and covered with feathers.

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yVLxv TIL Humans reach negative buoyancy at depths of about 50ft/15m where they begin to sink instead of float. Freedivers utilize this by "freefalling", where they stop swimming and allow gravity to pull them deeper.
rMoe TIL in 1961 Donald Reid built a Flying Submarine. It was demonstrated on 9 June 1964 where it dove to a depth of 6.5 feet (2 m) then flew to an altitude of 33 ft (10 m) .
yJ8 TIL average German eats 114 chocolate bars a year, whereas an average American eats 51
0mnR TIL there are unofficial Wile E. Coyote/Roadrunner rules, such as “No outside force can harm the Coyote” and “The Road Runner must stay on the road”
YpkaZ TIL that the word nepotism comes from the practice of popes appointing their nephews as cardinals, a way to secure their power over the college of cardinals