› added 4 years ago

174

TIL of a natural phenomenon called radiative cooling which the ancient Persians exploited to create ice, even when temperatures were above freezing

Read more ted.com

via reddit.com

OGog4 TIL that the Duchess of Cambridge, Kate Middleton, is the granddaughter of a WWII Bletchley Park codebreaker.
ADZk7 TIL about Heinrich Kramer who, after being obsessed with a woman who rejected him sexually, went on to write Malleus Maleficarum, a book that explained how to find and destroy witches, causing the beginning of the massive witch hunt during the dark ages and the countless murders of innocents
0w74v TIL the largest sandwich ever made spanned 12ft by 12ft and was 0.44m (17.5 inches) thick, weighing 2467.5 kg (5440 lb). It contained 68 kg (150 lb) mustard, 468.1 kg (1,032 lb) corned beef, 117.9 kg (260 lb) cheese, 240.4 kg (530 lb) lettuce and 1,618.4 kg (3,568 lb) bread.
rRnLW TIL General Ulysses Grant spotted a teamster beating a horse in the face with the butt-end of a whip, trying to free up a wagon stuck in mud. The usual calm Grant was so outraged that he ordered the teamster be tied to a tree for hours, presumably to allow him to think about his cruel actions.
LMlp TIL: 20% of all Google searches done daily have never been done before.