From People of the Web:

Walter Lewin is not merely dangling at the bottom of a 15-foot pendulum. He is swinging high and wide, his rapt audience of 300 counting off each cycle.

At 71, he's likely missed his window for a shot at Cirque du Soleil, but the Netherlands-born MIT physics professor seems happy with his own high wire act -- revealing to students, in the most unorthodox ways, the beauty of science.

More here.