Excursions in science. Program no. 424, Subject: Magnetic fluid clutch (Rabinow)--physics [sound recording]. Subject: Magnetic fluid clutch (Rabinow)--physics Magnetic fluid clutch (Rabinow)--physics Singiser, Frank. Tupper, Howard. General Electric Company. Research Laboratory. Magnetic fluids. NCPC 02958 504 REE General Electric: G-016521 (matrix). Distributed electrical transcription recording. "Prepared under the guidance of the General Electric Research Laboratory." "This record contains copyrighted material." Production level cataloging. Issued with: Excursions in science, program no. 423, Atomic energy in our time. Frank Singiser and Howard Tupper, hosts. Schenectady, N.Y. : General Electric, [between 1940 and 1949] [between 1940 and 1949] 1940 Sound 1 sound disc (ca. 14 min., 10 sec.) : eng