Physics 313: Lecture 22 Wednesday, 11/12/08 Announcements ● Assignment 6 is now available, it is the next to last assignment. ● Please start working on your project this week. ● Read – Sections 7.1 and 7.3, skip 7.3.4 – Next read intro to Chapter 9 and Section 9.2 – If there is time, I will say something about convective instabilities, Section 10.1. – Last class day is officially Tuesday, November 25. Ok to hold all class presentations on Mon, Nov 24 and Tue Nov 25? Last official lecture will then be Nov 19. Today's Topics ● ● Finish Chapter 6: – Phase diffusion equation from 1d amp eq – Nonlinear phase diffusion equation far from onset. Chapter 7 – 2d amplitude equation – Stability balloon – Superimposed stripes: competition between lattices Experimental Test of Phase Diffusion Near Onset of Convection Experiment Versus Theory for Linear Phase Diffusion Wave number Selection: Theory Vs Experiment Rotating Spiral Driven By Wave Number Competition