› added 7 months ago

33

TIL: William Halsted was a famous surgeon and a founder of Johns Hopkins, but was addicted to cocaine and used it during surgeries. He would inject himself with cocaine to test it before using it on patients. Eventually his writings for the NY Medical Journal became incoherent.

Read more wikipedia.org

via reddit.com

xVDDB TIL the Thirty Years' War could have only lasted 2 years if it wasn't for Frederick V's refusal to admit defeat, which caused Spain to invade the Holy Roman Empire and force him into exile. The other rulers within the Empire saw the removal of a hereditary prince as a threat and decide to intervene.
N4je TIL: After the 18th Amendment was repealed in 1933, Yuengling sent a truckload of “Winner Beer” to President Franklin D. Roosevelt in appreciation, which arrived the day the amendment was repealed — particularly notable since Yuengling beer takes almost three weeks to brew and age.
wLOAP When 50,000 of Mark Rober's 3 million YouTube subscribers participated in a basic coding challenge, the data all pointed to what Rober has dubbed the Super Mario Effect. The YouTube star and former NASA engineer describes how this data-backed mindset for life gamification has stuck with him along his journey, and how it impacts the ways he helps (or tricks) his viewers into learning science, engineering, and design. Mark Rober has made a career out of engineering, entertainment, and education. After completing degrees in mechanical engineering from Brigham Young University and the University of Southern California, Rober joined NASA’s Jet Propulsion Laboratory in 2004. In his nine years as a NASA engineer, seven of which were on the Mars rover Curiosity team, Rober worked on both the Descent Stage (the jetpack that lowered the Rover to the surface) and some hardware on the Rover top deck for collecting samples. In 2011, Rober’s iPad-based Halloween costume helped launch both his creative costume company, Digital Dudz, and his YouTube channel, which now boasts 3 million subscribers and 400 million views. His videos focus on creative ideas and science- and engineering-based pranks and activities. Rober is a regular guest on "Jimmy Kimmel Live!". Today, he does research and development work for a large technology company in Northern California, where he lives with his wife and son.
78nLp TIL Gut bacterias talk to our brain and influence our mood, energy level, appetite, memory and personality.
Qaxd TIL there’s a ladder that hasn’t been moved in centuries because of a religious dispute.