› added 6 months ago

24

TIL dolphins get drugged when chewing pufferfish

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p8wrG TIL that the world is facing a global sand crisis because sand and gravel mining greatly exceeds natural renewal rate.
Ypp6W One cartographer has done the heavy lifting, and rail fans are pumped.
VBJ4G TIL Benjamin Franklin ran the first placebo-controlled blind experiment. In 1782 King Louis XIV hired a group of scientists to investigate Franz Anton Mesmer's medical practices. Mesmer's cures were tried against nothing/fake treatments and ultimately the fakes worked as well as the 'real' cures.
vnO8 TIL that any map can be colored using only four colors without any same-color sections touching each other.
OG0pX TIL wood was used for connecting the Parthenon's column drums, preventing them from deformation in case of earthquakes