The 75-year-old Professor Lewin takes 10 full swings on a pendulum to demonstrate that adding mass will not change its frequency.

Manohar Srikanth—The Tech

May. 9, 2016

The 75-year-old Professor Lewin takes 10 full swings on a pendulum to demonstrate that adding mass will not change its frequency. Manohar Srikanth—The Tech