Some Web sites of interest and relevance to Physics 404

**Fall 2012**

Schroeder's site for An Introduction to Thermal Physics:

Simulations:

**Java
Simulations for Statistical and Thermal Physics**
from
Gould and Tobochnik's excellent curriculum development

**General
references:**

**Wikipedia****:
thermodynamics, statistical
thermodynamics, statistical
mechanics, ... **

Compendium of sites for Stat Mech & Thermo, also Nano, Quantum

**Hyperphysics
subsite on Heat & Thermodynamics**: lots of nice calculational modules

**Chap.
1**

Heat capacity (wikipedia)

Clear, succinct, elementary discussion of thermal expansion

Coefficients of linear expansion of the elements

Cute applet about heat capacity

Permutations and combinations, elementary review and alternative, with binomial coefficients

Combinations (wikipedia, terse)

Binomial and normal distributions, from Rice U.

Stirling's approximation (wikipedia)

Applets for 2-level system and rotating dimer (scroll down past formalism!)

**Chap. 2-3, entropy:**

Applet of bouncing ball and entropy

Extensive, non-technical discussion of entropy

Long discussion of entropy claiming to clarify common misconceptions

Doug Craigen's thought-provoking comments: Entropy and Evolution and Later Summary Notes

Diffusion applet and much fancier simulation

*Chap. 4, Heat
Engines:*

Refrigeration cycle, qualitative

Oversimplified p-V diagram for refrigeration

**Otto
cycle-car engine, animated**

Otto cycle with p-V diagram, re Wright brothers

**Otto and Diesel with animated p-V diagram**

**Lattice Vibrations***:*

**Phonon dispersion and display of TA and TO modes in 1D** (excellent java app)

Phonon dispersion in various crystals

Phonon density of states via "debye"

Equilibration of Einstein solids

*Conductivity
& transport:*

1D random walk and applications to semiconductor junctions

*Chap. 5, *Chemistry:

*Chap. 6, *Classical Statistical Mechanics :

Maxwell 2D speed distribution, basic

Maxwell 2D speed distribution, fancier

Maxwell 3D speed distribution: plots and discussion

*Chap. 7, *Radiation:

**Black
body spectrum, inc. total emitted power**

Fowler discussion of blackbody radiation

Cute applet on Einstein A & B coefficients

Chap. 7, Fermi gases:

Fermi distribution: temperature dependence

Fermi surfaces of actual metals

*Chap. 7, Phonons:*

Phonons (1D, longitudinal) also shows real dispersion, crystal momentum

Phonon applet (1D, 2-atom basis, transverse)

Dispersion for 3D fcc lattice with nearest-neighbor spring coupling--see last page (NB: German text)

Einstein and Debye model C and DOS

*Chap. 7, Bose-Einstein condensation and liquid helium II:*

Liquid Helium II, Superfluid, lambda transition

Liquid Helium II, Superfluid, Segment 1 of 6

Liquid Helium II, Superfluid, Segment 2 of 6

Liquid Helium II, Superfluid Segment 3 of 6: zero viscosity

Liquid Helium II the superfluid (Segment 4: The fountain effect)

Liquid Helium II, Superfluid, Segment 5 of 6: superfluid creep and second sound

Liquid Helium II, Superfluid, Segment 6 of 6: second sound (redundant to segment 5)

*Chap. 8,* *Ising model and Monte Carlo *

Ising model, 2D, nice and easy to run

Ising applet with adjustable dimensions and boundary conditions, as well as usual controls

3D Ising model , lots of nice controls

Spin systems:

Phase transitions:

Broken symmetry and order parameters (by J. Sethna)

Hysteresis (by J. Sethna)

Phase separation--dramatic movie

Centennial of Alfred Wegener's Continental Drift Theory

*Last
updated Dec. 5, 2012*