Ajit Pai @AjitPai
"It looked like a high school [science] project....But [so much] physics and thought went into it." OTD in 1960, Theodore Maiman sent light through artificial rubies, producing a short burst of coherent light. It was 1st-ever working laser. @APSphysics: https://t.co/AN32KQADjT — PolitiTweet.org