Size of this preview: 748 × 599 pixels. Other resolutions: 300 × 240 pixels | 599 × 480 pixels | 871 × 698 pixels.
Original file (871 × 698 pixels, file size: 69 KB, MIME type: image/jpeg)
Summary edit
| Description |
A United States Coast and Geodetic Survey illustration depicting the radio acoustic ranging and echosounding techniques. |
|---|---|
| Source | |
| Date |
Undated; probably ca. late 1930s |
| Author |
Unattributed United States Coast and Geodetic Survey illustration via National Oceanic and Atmospheric Administration (NOAA) Photo Library |
| Permission (Reusing this file) |
U.S. Federal Government illustration in the public domain
|
Licensing edit
 | This image is a work of the National Oceanic and Atmospheric Administration, taken or made as part of that person's official duties. As works of the U.S. federal government, all NOAA images are in the public domain in the United States. |  |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:42, 6 November 2016 | | 871 × 698 (69 KB) | Mdnavman (talk | contribs) | {{Information |Description = A United States Coast and Geodetic Survey illustration depicting the radio acoustic ranging and echosounding techniques. |Source = http://www.photolib.noaa.gov/htmls/cgs00923.htm |Date =... |
You cannot overwrite this file.
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
