Walter Lewin gives a special lecture on Friday June 29 titled “Trajectories in Moving and Accelerated Reference Frames” to a packed audience in 6-120. This was one lecture in an 8-lecture series that will continue until July 20. Elijah Mena—The Tech May. 9, 2016 Facebook Twitter Reddit Print Walter Lewin gives a special lecture on Friday June 29 titled “Trajectories in Moving and Accelerated Reference Frames” to a packed audience in 6-120. This was one lecture in an 8-lecture series that will continue until July 20. Elijah Mena—The Tech