› added 4 years ago

156

TIL transposed ("flipped") numbers are always perfectly divisible by 9. If you do not get an expected result when adding up a column of numbers, divide the total by 9. If you get a round number, you've likely transposed numbers in an entry.

Read more ine.scripts.mit.edu

via reddit.com

XRWj TIL that the drug company Bayer bought Auschwitz prisoners to be used as research subjects for testing new drugs.
VMrB4 TIL The Barlow lens was invented in the 19th century by Peter Barlow and can increase the magnification of any telescope eyepiece used with them, usually 2 or 3 times
YpWPZ Til about the unofficial saint of handguns, St Gabriel Possenti who save a town from RedShirts by shooting a lizard on the road
b9PPp TIL How Germans loved to pose with men in POLAR BEAR costumes. Frenchwoman Jean-Marie Donat amassed a collection over 10,000 vintage photos of 1920s and 1930s Germans, posing with men dressed up as polar bears.
J11g8 TIL that during the filming of My Left Foot (1989), Oscar winning actor, Daniel Day-Lewis remained in character for the whole production. He stayed in the wheel chair for the duration of the shot and the film crew had to lift him over obstacles. They had to feed him too.