› added 1 month ago

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TIL about Joseph Goldberger an epidemiologist in the US Public Health Service. He proved pellagra was due to bad diet, but for years his evidence was disbelieved.

Read more history.nih.gov

via reddit.com

OoWM7 TIL the US agriculture industry was using an arsenic additive for chicken feed up until 2011, and at its peak 1000 tons of it were produced every year. The FDA finally banned its use in 2015, four years after the industry stopped using it.
Lk8op TIL that the 20th Century Fox logo has a hidden sync mark. The flash in the bottom right at 0:11 lines up with the last beat before the finale. Editors & mixers use that to make sure the audio & picture are in sync.
OowP7 TIL the Aztecs of Mexico used a “rabbit scale” to describe degrees of intoxication. It ranged from very mild intoxication (a few rabbits) to heavy drunkenness (400 rabbits).
7yMx TIL that Bluetooth is named after 10th Century king Harald Bluetooth who united Danish tribes into a single kingdom, and that the Bluetooth logo is made of the runes for his initials.
ADa6l TIL Iceland has more writers, more books published and more books read, per head, than anywhere else in the world