› added 8 years ago

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TIL that Olympians are now allowed a modest amount of THC in blood tests. In May 2013, the World Anti-Doping Agency (WADA) raised the in-competition threshold for marijuana tenfold, to 150 ng/ml, meaning that an athlete would have to be a “pretty dedicated cannabis consumer” to test positive.

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via reddit.com

J1Ky1 TIL that between one-half and two-thirds of European immigrants to the Thirteen Colonies between the 1630s and the American Revolution came as indentured servants
p8vbA TIL that while preparing a speech to create a permanent soil erosion service, Hugh H. Bennett was notified of a dust storm approaching Washington DC. He pushed back meeting with Congress until it was estimated to arrive to conclude with opening up the curtains to a dramatic view of a dust storm.
dod7 TIL that in 1968 a US plane carrying four H-bombs crashed into sea ice in Greenland and exploded, contaminating the area around the site with radiation.
lo9mA TIL that turkeys can fly up to 60 miles an hour despite their 20 pound heft. They roost high up in the trees at night, but spend most of their time on the ground, causing the misconception that they are incapable of flight at all.
Wk9od TIL that in Uber's 2018 fatal self-driving car accident the system mis-identified the pedestrian and didn't act to avoid the accident. The car's emergency braking system could have acted at the last second, but that system had been disabled.