Sir Harold W. Kroto, a winner of the 1996 Nobel Prize in Chemistry, gave a lecture on nanoarchitecture in May 2007, in Brussels. "Find something to do where only your best effort will satisfy you," he advised students.
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Kroto displays a model of his discovery in 1996: a soccer ball-shape carbon molecule that spawned a new field of study and could act as a tiny cage to transport other chemicals.
The model of a DNA stands on a desk during a press conference to announce the winners of the Nobel Prize in Chemistry 2015 on Wednesday at the Royal Swedish Academy of Sciences in Stockholm. Sweden's Tomas Lindahl, Paul Modrich of the US and Turkish-American Aziz Sancar won the Nobel Chemistry Prize for work on how cells repair damaged DNA.
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The "Super-Kamiokande" neutrino detector operated by the University of Tokyo's Institute for Cosmic Ray Research helped scientist Takaaki Kajita win a share of the Nobel Prize in Physics, along with Canadian Arthur B. McDonald.
French economist Jean Tirole won the Nobel prize for economics Monday for research on market power and regulation in industries dominated by a few powerful companies. The undated photo was provided by the Toulouse School of Economics.
Molecular biologist Randy Sheckman, who shared the 2013 Nobel Prize in physiology or medicine, acknowledges applause after receiving his prize during the ceremony in Stockholm last December.
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The Royal Swedish Academy of Sciences announces the winners of the 2013 Nobel Memorial Prize in Economic Sciences in Stockholm Monday. The prize went to U.S. professors Eugene Fama, Lars Peter Hansen and Robert Shiller.
U.N. chemical weapons experts carry samples collected on Aug. 28 from a site of an alleged chemical weapons attack near the Syrian capital Damascus. The Organization for the Prohibition of Chemical Weapons, which is dismantling Syria's chemical weapons stockpile, was awarded the 2013 Nobel Peace Prize on Friday.