In a rebroadcast from October 18, 2009, Keith & Russ talk with Dieter Cremer, professor of Computational & Theoretical Chemistry at Southern Methodist University. Cremer talks about how computational chemistry allows him to develop new methods of measuring how vehicle exhaust reacts with ozone. He also tells us about his investigation into quantum dots. http://smu.edu/chemistry/cremer.asp Aired July 7, 2013.