Two on Physics

Lewin is six feet two, silver-haired, and speaks with a Dutch accent. In the videos of his lectures he lopes energetically in front of his chalkboards and makes pronouncements like “Now, I’m going blow your minds!” You can watch him shoot bullets through paint cans, ride a bike with a rocket attached to the back, or make a battery with trash cans and water. From The Music of Physics a May 15 column in the Globe.