Lecture23: Brownian Motion and Diffusion

Thermal and Statistical Physics by Prof. Carlson

Nov 30, 2005Education

Brownian motion was discovered by a botanist named Brown, when he looked at water under a microscope, and observed pollen grains "jiggling" about in it. Einstein eventually explained it as due to the random collisions th...

Related Episodes

Continue listening to more episodes from Thermal and Statistical Physics.

Lecture 1: Accessible States

Aug 22, 2006

It's a new year, with new lectures. Today is an introduction to Thermal and Statistical Physics. We do a...

New Course: Solid State Physics

Jan 10, 2006

Prof. Carlson is teaching a new course this semester, entitled Solid State Physics. Here is a taste of th...

Final Review 2

Dec 12, 2005

This is a final review for the last 1/4 of the course. This is a very short lecture, because we had a fie...

Final Review 1

Dec 5, 2005

This is a final review for the first 3/4 of the course. Lecture Audio

Lecture 24: Fluctuation-Dissipation Theorem

Dec 1, 2005

We finish two more examples of the Fluctuation-Dissipation Theorem. This is a theorem that pops up everyw...

Lecture 22: Nucleation in First Order (Abrupt) Phase Transitions

Nov 16, 2005

Supercooling Demonstration (thanks to special guest Prof. Ken Ritchie ): Put filtered water in a plastic...

Lecture 21: Alloys, Mixing, and Phase Separation

Nov 15, 2005

Oil and water -- they don't mix. Or do they? Due to the entropy of mixing, any tiny amount of impurity is...

Lecture 20: Landau Theory of Phase Transitions; Oil, Water, and Alloys

Nov 10, 2005

Now that we know what order parameters are (see last lecture), we'll use the order parameter of a phase t...