Lunch 'n Learn presentation: Two Princeton faculty describe their research uses of Princeton's high performance computing facilities. Professor Anatoly Spitkovsky will discuss "Simulations of Astrophysical Shocks. He will talk about the first-principles plasma simulations of shock waves in astrophysics, addressing a very simple-sounding problem --- what happens when two clouds of ionized gas collide in space? Professor Jeroen Tromp will talk about "Simulating the Big One, a large-scale 3D numerical simulations of seismic waves generated by real and hypothetical earthquakes and the resulting response of engineered structures. Bios: Curt Hillegas is Director of the TIGRESS High-Performance Computing Center and Computational Science and Engineering with OIT's Academic Services. Anatoly Spitkovsky is Assistant Professor of Astrophysical Sciences. Jeroen Tromp is Professor of Geosciences and Applied and Computational Mathematics. More info: http://blogs.princeton.edu/itsacademic/2008/10/applications_of_high_performance_computing.html