Staffan Normark (C), permanent Secretary of the Royal Swedish Academy of Sciences, announces the laureates of the 2013 Nobel Prize in Chemistry during a press conference in Stockholm, Sweden, on Oct. 9, 2013. Three scientists shared the 2013 Nobel Prize in Chemistry for the development of multi-scale models for complex chemical systems, the Royal Swedish Academy of Sciences said Wednesday. The prize was awarded to Martin Karplus (U.S. and Austrian citizen), Michael Levitt (U.S., British and Israeli citizen) and Arieh Warshel (U.S. and Israeli citizen). (Xinhua/Shi Tiansheng) |