› added 1 year ago

164

TIL that the mirrors required for the production of advanced microchips are so flat that if scaled to the size of Germany the highest point will only be a tenth of a millimeter. Because of that the German technologies company "Zeiss" is the only one in the world able to produce these mirrors.

Read more zeiss.com

via reddit.com

PY9jO TIL about John Harrison, a self-taught, working class carpenter and clockmaker. He invented the maritime chronometer, which finally made sea travel safe and reliable.
R5rNw TIL: the Judge Rotenberg Center, an institution in Massachusetts for those with developmental disabilities and autism, has been condemned for torture by the United Nations Special Rapporteur on Torture
neAoG TIL that in 1403, at the Battle of Shrewsbury when future King Henry V of England was 16 he was shot in the face by an arrow. The royal physician, while using honey as an antiseptic, crafted a specially designed tool to successfully extract the embedded arrowhead without doing any further damage.
yVQRX TIL Jack Ruby was sentenced to death for murdering Lee Harvey Oswald, JFK's assassin. Ruby's verdict was the first courtroom verdict to be televised in U.S. history. It was later overturned and he died from cancer while awaiting a retrial.
g9bW TIL John Lennon’s son Julian Lennon had to buy back his father’s letters written to him and other of John’s belongings in an auction that Yoko Ono did after John’s death. Julian basically used his dad’s money to buy his dad’s belongings.