. Collected reprints, Essa Institute for Oceanography. Oceanography DEEP-SEA PHOTOGRAPHY 73. 5-5. Summary A method has been described to utilize stereophotography beyond the usual visual sensation of three dimensions. Within its limitations the system permits the scientist to measure what he sees without being there himself or tak- ing samples. The method elevates deep-sea stereophotog- raphy to the status of a sampling device and can be used alone or correlated with other sampling means, permitting the extension of "point" information to "area" informa- tion.
. Collected reprints, Essa Institute for Oceanography. Oceanography DEEP-SEA PHOTOGRAPHY 73. 5-5. Summary A method has been described to utilize stereophotography beyond the usual visual sensation of three dimensions. Within its limitations the system permits the scientist to measure what he sees without being there himself or tak- ing samples. The method elevates deep-sea stereophotog- raphy to the status of a sampling device and can be used alone or correlated with other sampling means, permitting the extension of "point" information to "area" informa- tion. This technique allows an accurate quantitative description of objects and features that otherwise could only be described in nondimensional terms. To quote Lord Kelvin (1824-1907): "I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely, in your thoughts, advanced to the stage of science, whatever the matter may ; Figure 5-lb. Contours drawn on one of the stereopair in fig. 5-3«. Contour interval, 10 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute for Oceanography; Atlantic Oceanographic Laboratories (U. S. ); Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories. Washington, D. C. : U. S. Dept. of Commerce, Environmental Science Services Administration, Research Laboratories : For sale by the Supt. of Docs. , U. S. G. P. O.
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