› added 5 years ago

264

TIL the Saint Louis Arch is as wide as it is tall (630 feet x 630 feet)

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kK8W TIL that Leonardo da Vinci designed a scuba suit.
oRm5o TIL of The Business Plot of 1933, a failed attempt to overthrow FDR and install a dictator. Led by a covertly bankrolled Wall Street coalition of affluent businessmen
R5dk8 TIL that Victoria Coren Mitchell's therapist, treating her intense fear of flying, died in a plane crash.
e0XRk TIL about A-230, a new Russian chemical considered to be the most potent nerve agent ever discovered. It’s estimated that less than 0.1 mg is lethal for humans. It was added to Schedule 1 of the Annex of Chemicals of the Chemical Weapons Convention as of June 2020.
5VdVP TIL A one-way trip on the Trans-Siberian Railway involves crossing 3,901 bridges