Factbox - A look at the 2013 Nobel Chemistry Prize

(Reuters) - Here is a look at the 2013 Nobel Prize for Chemistry, which was awarded on Wednesday jointly to Martin Karplus, Michael Levitt and Arieh Warshel "for the development of multiscale models for complex chemical systems".

- Chemical reactions occur at lightning speed; electrons jump between atomic nuclei, hidden from the prying eyes of scientists. The 2013 prize winners in chemistry have made it possible to map the mysterious ways of chemistry by using computers. Detailed knowledge of chemical processes makes it possible to optimize catalysts, drugs and solar cells.