Significant knowledge of the structure of the earth beneath the sea is gathered from seismic studies. An explosive charge originates waves which travel through the sea floor and are picked up by a listening ship. Here Maxwell Silverman, engineer, pushes overboard a 200-point charge of TNT from the shooting table
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Special Collections & Archives, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/sca) This digital image is a surrogate of an item in the SIO Photographs Collection (SMC 59). National Science Digital Library - Scripps Institution of Oceanography Explorer Original 8X10 print in blue notebk; neg in FC 44 [Title, Date]. SIO Photographs Collection. SMC 59. Special Collections & Archives, UC San Diego.
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