NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.

NOAA Photo Library Image - cgs01187

First use of electronics for precise distance measurement. Carl Aslakson of the Coast and Geodetic Survey devised a method of airplane baseline crossing between two stations. The minimum sum of the two distances reduced to ground level was the true distance.

Image ID: cgs01187, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Colorado
Photo Date: 1945

Category: Coast and Geodetic Survey/

High Resolution Photo Available

Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration (NOAA),
NOAA Central Library
NOAA Privacy Policy | NOAA Disclaimer
Last Updated:
November 10, 2017