RT Sound Recording DB /z-wcorg/ DS http://worldcat.org ID 277232476 LA English T1 Excursions in science. Excursions in science. Program no. 73, Program no. 74, Program no. 73, Program no. 74, A1 Tupper, Howard., Markham, Emerson., Compton, Arthur Holly,, Reynolds, Neil B., Goldin, J. David., Andrew W. Mellon Foundation., Marr Sound Archives., PB General Electric PP Schenectady, N.Y. YR 1943 AB Program no. 73: A discussion about current research on cosmic rays. Based on a research paper by Dr. Arthur H. Compton. Program no. 74: A discussion of the life and work of Julius Robert Mayer, who formulated the law of the conservation of energy. Based on a research paper by Neil B. Reynolds.