› added 5 months ago

13

TIL Paul Revere was a master silversmith

Read more history.com

via reddit.com

1aKZ4 TIL that a photosensitive drum, charged by a corona wire, inside a photocopier machine, carries an electrical shadow of the letters to be copied towards the toner, where the toner particles stick to the shadow and then transfered to white blank paper.
AD4wB TIL that Britain during the Palaeolithic period was intermittently populated due to glaciation driving the humans out multiple times.
MewOW TIL that a ghost army is seen every year on May 17 in Frangokastello, Greece. Nazis reportedly shot at the apparitions during WWII.
m1BM TIL A younger vision of Leonardo da Vinci’s “Mona Lisa” will be presented in Geneva with the suggestion that it is the original version of what has been called the world’s most famous painting.
6EJPY TIL there is a linear relationship between sleep and cognitive functioning: more sleep leads to better cognitive performance, and vice versa.