
Carnegie Institute of Washington, Department of Terrestrial Magnetism, Atomic Physics Observatory, 5241 Broad Branch Drive Northwest, Washington, District of Columbia, DC
Summary
Significance: The Atomic Physics Observatory (APO) was completed in 1938 to improve the capability of measuring the earth's magnetic fields which was undertaken by the Carnegie Institution of Washington's Department of Terrestrial Magnetism, beginning in the early 1900s. The APO contained an electrostatic generator and tube that operated at electrical potentials of more than five million volts.
Survey number: HAER DC-52-C
Building/structure dates: 1938 Initial Construction
Tags
Date
1969 - 1980
Contributors
Historic American Engineering Record, creator
Carnegie Institution of Washington
Hardy, Shaun J, researcher
Location
Washington, District of Columbia, United States, 38.89181, -77.00950
Source
Library of Congress
Copyright info
No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html