Myosin V molecular motor walks on actin filaments. Yildiz et al., Science, 2003. 
Fall 2013: PHY590  Biological Physics
This course introduces advanced undergraduates or graduate students with a background in physical or life science to the following physical principles that apply to biological molecules and cells: life in moving fluids, diffusion in cells, statistical mechanics of crowding, dynamics of selfassembly, molecular motors, neural transport, and dynamics of biological networks. These principles are applied to architecture for cells and skeletons, enzymes as molecular machines, membranes, and DNA. Textbook: Physical Biology of the Cell by Phillips, Kondev, Theriot, and Garcia, Second Edition, Garland Science. Prerequisites: one year of university physics, and corresponding math (calculus). Time: M/W/F 11:15am  12:05pm Link to online course. 
"The Theory of Relativity", the sixth and last sculpture of the Walk of Ideas in Berlin.

Spring 2013: PHY284  Modern Physics
PHY284 is the 4th term in the introductory physics sequence at UMass Amherst. In this course we will explore two fundamental topics in modern physics: Relativity and Quantum Mechanics.
In the first 3 weeks, the course will cover Special Relativity and a little bit of General Relativity.
We will then discuss the experimental evidence for Quantum Mechanics, Schrodinger's equation, and some introductory examples of QM including its application to modern microscopes.
Textbook: P. Tipler, R. Llewellyn. Modern Physics  5th ed. ISBN10: 0716775506 Prerequisites: Basic knowledge of classical Newtonian mechanics, electromagnetism and waves; a solid background in elementary calculus and complex numbers, with proficiency in algebraic manipulation, trigonometry, derivation and integration (tables of integrals will be allowed), simple differential equations. Time: M/W/F 12:20pm  1:10pm Link to online course. 