› added 6 years ago

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TIL of infrasound - a low-frequency sound (19Hz and below) that cannot be heard, but literally unsettles human beings. Some horror movie music composers use this sound to make audiences feel dread just before disturbing or scary images appears on the screen.

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OnlR TIL that carrots aren’t actually good for your eyes… it’s just a myth that the British government fabricated during WWII. They wanted to keep their newly developed radar system secret from the Germans and had to find some way to explain how they were suddenly shooting down a lot more planes.
9wbbM TIL that Mussolini used castor oil to humiliate and torture political enemies. Victims had their mouths forced open, and a bottle of castor oil was poured down their throats, causing severe diarrhea, dehydration, and public humiliation. This was a common method to punish opponents of Fascism.
8e8Ya TIL that Supermarket apples can be a year old
Y7pGZ TIL Rum was a defacto currency in Australia
19GO TIL That orca whales will float on their sides at night and watch the Northern Lights.