The 2010 Nobel Chemistry co-laureate Richard F. Heck, shows his signature under a chair at the Nobel Museum in Stockholm, Sweden Monday Dec. 6 2010. It is one of the traditions during the week leading up to the Nobel Prize ceremony that will take place in Stockholm on Friday. Heck, of University of Delaware, USA, is a U.S. citizen. (AP Photo/Scanpix Sweden/Janerik Henriksson)
