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Til that fingernails serve to enhance sensation and precise movements of the fingertips through the counter-pressure exerted on the pulp of the fingers by the nails.

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wom6W TIL when Brian Lara broke the first-class cricket world record for highest individual score by scoring 501 runs, his sponsor, clothing company Joe Bloggs, was unable to release commemorative jeans because "501" was a Levi's trademark. They ended up making a "500 and One" series of t-shirts and caps.
Ob6g TIL that Dale Dye, a Vietnam vet, was so “pissed off” at Hollywood’s depiction of war that he offered his services as an advisor and now runs “the entertainment industry’s top military consultancy company”. He’s worked on Platoon, The Pacific and, for some reason, Entourage.
PYZ1V TIL that someone created a life sized Jason Voorhees and planted him at the bottom of a lake for divers to stumble across
jNGLQ TIL of the tallest solider of all time, Väinö Myllyrinne. While he served for the Viipuri Heavy Artillery he was (7ft 3in) tall. Later in his life he had anothe growth spurt and he ended up being (8ft 3in) tall. On top of all that he was a wrestler, in a circus, and had GIANT hands.
5YBjr TIL of a legend of Bodhidharma a Monk who fell asleep wall gazing, to stop it happening again he cut off his eyelids. When his eyelids hit the ground they became the first tea plants. This is apparently why the character for eyelids and tea are the same in Japanese.