New fathometer used at full speed. Washington, D.C., May 7. Dr. Herbert Grove Dorsey of the U.S. Coast and Geodetic Survey has invented an instrument to secure the precise measurement. The machine sends a sound, pitched so high that it is above audibility, traveling thru the water a known speed, the
4 x 5 in. or smaller
- Date
- 1937
- Collection
- Harris & Ewing
- Archive
- Library of Congress (via Wikimedia Commons)
- Type
- photograph
- Original size
- 7,993 × 10,021 pixels
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"New fathometer used at full speed. Washington, D.C., May 7. Dr. Herbert Grove Dorsey of the U.S. Coast and Geodetic Survey has invented an instrument to secure the precise measurement. The machine sends a sound, pitched so high that it is above audibility, traveling thru the water a known speed, the" (1937). Harris & Ewing. Library of Congress, Prints and Photographs Division, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:New_fathometer_used_at_full_speed._Washington,_D.C.,_May_7._Dr._Herbert_Grove_Dorsey_of_the_U.S._Coast_and_Geodetic_Survey_has_invented_an_instrument_to_secure_the_precise_measurement._The_LCCN2016871649.tifNeed photos for a whole script? Add Find Any Photo to Claude and ask for this one by its id: 290341.
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