Did you know? During the 1890s Mark Twain struck up a friendship with inventor Nikola Tesla. Twain often visited him in his lab, where in 1894 Tesla photographed the great American writer in one of the first pictures ever lit by phosphorescent light. Tesla studied math and physics at the Technical University of Graz and philosophy at the University of Prague. In 1882, while on a walk, he came up with the idea for a brushless AC motor, making the first sketches of its rotating electromagnets in the sand of the path. Later that year he moved to Paris and got a job repairing direct current (DC) power plants with the Continental Edison Company. Two years later he immigrated to the United States. Nikola Tesla and Thomas Edison Tesla arrived in New York in 1884 and was hired as an engineer at Thomas Edison’s Manhattan headquarters. He worked there for a year, impressing Edison with his diligence and ingenuity. At one point Edison told Tesla he would pay $50,000 for an improved design for his DC dynamos. After months of experimentation, Tesla presented a solution and asked for the money. Edison demurred, saying, “Tesla, you don’t understand our American humor.” Tesla quit soon after. Posted @withregram • @thespacemate - Credit - @astrovia1 - #spacefacts #astronomyfacts #astronomylover #didyouknowgram #spaceporn #spacelovers #astronomynerd #spacepics #astronomylovers #spacetoday #astrophotos #thedailycosmos #astronodagalaxy #apod #youresa #deepsky #astrography #starscape #factsmyphotos #andromeda https://www.instagram.com/p/CE7EJ4lHgKM/?igshid=1dwt793gz2yzj