French physicist known for the de Broglie hypothesis which forms the central part of the theory of quantum mechanics and explains the wave-particle duality of matter. This was proved by the Davisson–Germer experiment and got de Broglie the 1929 Nobel Prize in Physics.
Twitter has been used from space. "Hello Twitterverse! We r now LIVE tweeting from the International Space Station -- the 1st live tweet from Space! :) More soon, send your ?s" was the first tweet sent by astronaut TJ Creamer (@Astro_TJ) on January 22, 2010. [more...]