Carlos Bustamante is a mechanic. He tinkers with machines to see what makes them tick. He talks a lot about torque and force, compression and tension. Bustamante is not an engineer though. He's a UC Berkeley professor of molecular and cell biology, physics, and chemistry. And the devices he studies are the microscopic machines behind life itself--cells, proteins, molecular motors, and DNA.

Read the full article on the ScienceMatters@Berkeley website.