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TIL That Texas has outlawed the purchase of common laboratory glassware without a permit in an anti-drug production effort

Read more dps.texas.gov

via ift.tt

b9L6N TIL that the same engineer who was responsible for adding lead (TEL) to gasoline was also responsible for the widespread use of CFCs as refrigerants. The same person was responsible for two of the worst air pollutants of the twentieth century.
eLJn TIL there is a giant limestone wall in Bolivia that has over 5000 dinosaur footprints on it. The 462 tracks were made by 8 species over 68 million years ago.
AN0gB TIL that in 2014 researchers at MIT conducted a study that found participants were capable of extracting a picture's conceptual meaning after viewing it for as short as 13 ms, meaning the maximum framerate the human eye can see is about 77 frames per second.
P1Y1n TIL in 1950 the Boyscouts of America ran a 40th anniversary campaign called "Strengthen the Arm of Liberty" where they sent ~200 copper replicas of the Statue of Liberty around the US. Despite being over 8' tall and weighing 260lb, many have been lost and now only ~100 can be accounted for.
W7xdN TIL that the first woman to serve in the United States Senate was also the last member of Congress to be a slaveowner.