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Harold Edgerton working on pinger at WHOI Dock

Harold Edgerton working on pinger at WHOI Dock
Harold Edgerton working on pinger at WHOI Dock
Harold Edgerton working on pinger at WHOI Dock
Harold Edgerton working on pinger at WHOI Dock
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342028
Hahn, Jan
Harold Edgerton working on pinger at WHOI Dock
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08/01/1959
archives-HahnCollection_People-mc74-222.tif
Date is approximate.
Image of The Day caption:
Early in his career, Harold "Doc" Edgerton (shown here working on the WHOI dock in 1959), built underwater flashes and cameras for famed marine explorer Jacques-Yves Cousteau. Operating cameras in murky ocean waters often proved challenging, so Edgerton developed a device he called a "pinger" (pictured) that emitted sound waves and helped researchers locate the camera in the water relative to the seafloor. In 1972, Edgerton, who was a professor at MIT, participated in the H. Burr Steinbach Visiting Scholars Program, at WHOI.
Photo by Jan Hahn
© Woods Hole Oceanographic Institution
Jan Hahn Collection, MC-74, acquired by the Data Library and Archives November 24, 1992. Date range of photographs, 1947-1972.
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