TED

http://www.youtube.com/user/tedtalksdirector?ob=4&feature=results_main ** Rory Sutherland: Perspective is everything ** Summary: Rory Sutherland talks about how perspective is significant for living a happy live. He gives a humorous example about electronic cigarette because cigarette is banned in party in English. If a person were in a party and alone, he would maybe stare at the window. Rory states that if that person is with a electronic cigarette, others may think he is a "fucking philosopher". In opposition, if he is without cigarette, others will definitely think that he is a nut. He advocates that people should change their perspectives when they are unhappy or unsatisfied about a certain things because in this way happiness will seems tangible.

http://www.youtube.com/watch?v=D2IQkKE7h9I&list=PL454A0274C1223C90&index=11&feature=plpp_video

** Klaus Stadlmann- The world's smallest 3D printer **
Summary: Klaus Stadlann is the father of the world's smallest 3D printer. This thought originated from an accident when he was repairing. This innovated and advanced technique consumed him a month to accomplish it. He says that this printer takes just a day to print a 3D model. He is very humorous and gives several graphs about how he get the idea about this 3D printer. He   and his university professor together create this machine, which became one of the most popular inventor these days.