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A seismic shot off the bow off original R/V Atlantis.

A seismic shot off the bow off original R/V Atlantis.
A seismic shot off the bow off original R/V Atlantis.
A seismic shot off the bow off original R/V Atlantis.
A seismic shot off the bow off original R/V Atlantis.
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607000
Fay, Don
A seismic shot off the bow off original R/V Atlantis.
Still Image
01/01/1948
com-cullen-Med.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 60, No. 1, Pg. 33:
TRANSMISSION OF SOUND AT SEA
In 1937, Columbus Iselin observed the “afternoon effect,” the bending of sound waves as they passed through layers of varying temperatures due to surface water heating. These studies continued and led to WHOI’s compiling of “Sound Transmission in Sea Water,” a manual later used by the Navy for training sonar operators. WHOI scientists continued to investigate sound propagation throughout the war and helped lay the groundwork for the field of underwater acoustics.
Photo by Don Fay
© Woods Hole Oceanographic Institution
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