1. The Art of Estimation Physics
also known as
Ph 2239
Statistical Mechanics
for Dummies
Patrick Diamond, George M. Fuller, Tom Murphy
Department of Physics, University of California, San Diego

2. Handy Facts: Solar System
radius of earth’s orbit around sun

3. Handy Facts: the Universe

4. Fluids, Transport, Turbulence

5. Mean Free Path/Time
diffusion constant

6. Random Walk
time to random walk a distance R

7. Fluid Dynamics – for the impatient
Really, nothing more than energy-momentum conservation

8. Kinematic Viscosity

9. Perfect Fluid: No viscosity and no heat flow in a
momentarily co-moving rest frame

10. Example: photon viscosity (radiation dominated)

11. Reynolds number

12. “The Feynman Lectures on Physics”, Vol. II, Figure 41-6