› added 5 years ago

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TIL that the US military has never banned the use of napalm on military targets away from civilian areas, and still has a type of bomb very similar to napalm called the Mark 77 that has been used in both Iraq and Afghanistan.

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Zpdrv TIL why blueprints are blue. They have a chemical called Ferric Ferrocyanide (which is light sensitive) and was used on the paper to make copies of designs and drafts, ultimately leading to that iconic blue color.
v1o6L TIL that when songwriter John Loudermilk's 1956 song "A Rose and a Baby Ruth" became a huge hit, the manufacturer sent him a custom 100 lb Baby Ruth candy bar, which he took to an orphanage and they cut it up with an ax to distribute to the children.
nyBW TIL that cross writing was a popular technique used in the 1800s in order to conserve paper, as the resource had become scarce.
MyMb TIL that it used to be compulsory for figure skaters to slowly trace precise, intricate shapes into the ice to be inspected by judges for scoring – hence the name ‘figure skating’.
06dA TIL MAPS is undertaking an eight-year, $18.5 million plan to make MDMA into an FDA-approved prescription medicine by 2021, and is currently the only organization in the world funding clinical trials of MDMA-assisted psychotherapy.