visibility Similar

Induction heating apparatus 1927

Edwin Armstrong and superregenerative receiver

Visvangst - A black and white photo of a man talking on a phone

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 sound hits the bottom and returns as an echo at 20 times per second. The fathometer is so accurate that a change in depth of three inches can be detected. the indications are made by a flash from a neon tube, viewed thru a rotating disc, the flash of light appearing to stand still and the depth is read as easily as a clock. The instrument indicator is installed in the pilot house (at the top of the machine) and the transceiver (the disc at the right of the machine ?) is located in the hull of the ship, 571937

[Man with insect collection] - Glass negative photogrpah. Public domain.

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 sound hits the bottom and returns as an echo at 20 times per second. The fathometer is so accurate that a change in depth of three inches can be detected. the indications are made by a flash from a neon tube, viewed thru a rotating disc, the flash of light appearing to stand still and the depth is read as easily as a clock. The instrument indicator is installed in the pilot house (at the top of the machine) and the transceiver (the disc at the right of the machine [?]) is located in the hull of the ship, 5/7/1937

Man with insect collection - Glass negative photogrpah. Public domain.

Industrial High School, Science Class, Demonstration of an electrolysis rig, April 1951

code Related

Dr. Joseph Gilbert Hamilton taken in 1955 or 1956 by Grace Walpole. Morgue 1956-12 (P-1) [Photographer: Donald Cooksey]

Formal portrait of Joseph Gilbert Hamilton taken April 9, 1954. Morgue 1954-5 (P-1) [Photographer: Donald Cooksey]

Cornelius Tobias and Dr. Bremerman on a poster for the Biophysical Society's 9th annual meeting in San Francisco, taken February 4. 1965. Morgue 1965-1 (P-2). See XBD201004-00384.tif for source photo [Photographer: Donald Cooksey]

William S. Burroughs, Mortimer Burroughs, Sr., and Mortimer Burroughs, Jr., St. Louis, ca. 1920.

Ed Lofgren and Bill Brobeck taken January 28, 1954 at the Bevatron. Morgue 1954-8 (P-5) [Photographer: Donald Cooksey]

Portrait of Dr. Melvyn Calvin, taken October 26, 1961. Morgue 1961-20 (P-5) [Photographer: Donald Cooksey]

Glenn T. Seaborg and John F. Kennedy at Lawrence Berkeley Laboratory during Kennedy visit to UC Berkeley on Charter Day, March 23, 1962. Morgue 1962-16 (P-4) [Photographer: Donald Cooksey]

Portrait of Dr. Bernard Harvey taken for the Junior Scientists' Workshop series, taken October 1958. Morgue 1958-67 (P-1) [Photographer: Donald Cooksey]

Glenn T. Seaborg in his lab in 307 Gilman Hall, on the University of California, UC Berkeley campus. Morgue 1962-38 (P-4); CN 955 [Photographer: Donald Cooksey]

William Brobeck and Dr. Joseph Gilbert Hamilton, taken in 1955 or 1956 by California Academy of Sciences, Moss Photography of San Francisco. Morgue 1956-12 (P-2)

description

Summary

Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

label_outline

Tags

brobeck william brobeck joseph gilbert hamilton joseph gilbert hamilton california academy california academy sciences moss photography moss photography san francisco morgue nuclear research nuclear research facilities berkeley laboratory berkeley lab 1950 s men 1950 s 50 s high resolution ultra high resolution special events california academy of sciences science laboratory us national archives
date_range

Date

1955
create

Source

The U.S. National Archives
link

Link

https://catalog.archives.gov/
copyright

Copyright info

Restricted - Possibly Specific Use Restriction: Copyright Note: The University of California, as the Department of Energy contractor managing the historical image scanning project, has asserted a continuing legal interest in the digital versions of the images included in the NARA accession, and, accordingly, has stipulated that anyone intending to use any of these digital images for commercial purposes, including textbooks, commercial materials, and periodicals, must obtain prior permission from the University of California-Lawrence Berkeley National Lab, through photo@lbl.gov.

label_outline Explore Joseph Gilbert Hamilton, California Academy, William Brobeck

An interior view of Building 1437, the mobility computer center at the San Antonio Air Logistics Center, in the aftermath of Hurricane Gilbert

[Gilbert Betterman, Gus J. Kaiger, F.W. Galbraith, 2/8/21]

Glenn Seaborg adjusts a Geiger-Muller counter during his search for plutonium at the Radiation Laboratory. Morgue 1956-6 (P-30), 1941 [Photographer: Donald Cooksey]

New York, New York. "Morgue" of the New York Times newspaper. Tommy Bracken, head of this department, has been with paper fifty-one years, is the oldest employee

Judge McKenzie Moss, 3/12/23 - Public domain photograph, glass negative

Portrait photo of Honorable Gilbert, Glass Negative, 1860s

KRON TV's first rehearsal for February 26 "Science in Action" show with Earl Herald, Al Ghiorso, and Director Vern Louden. Photo taken March,1962. Morgue 1962-80 (P-6) [Photographer: Donald Cooksey]

The discovery of machine-made mesons by Lattes and Gardner was announced. in February , 1948. C.M.G. Lattes (left) and E. Gardner with the emulsion positioning apparatus for the 184-inch meson experiments taken. March 8, 1948. Morgue 1948-4 (P-3) [Photographer: Donald Cooksey]

Don Glaser, taken March 20, 1963. Morgue 1963-7 (P) [Photographer: Donald Cooksey]

Portrait of Ernest Orlando Lawrence, 1917. Morgue 1958-8 (P-90) [Photographer: Donald Cooksey]

Isador Perlman at his desk, taken May 5, 1959. Morgue 1959-9 (P-3) [Photographer: Donald Cooksey]

David Cudaback, engineer in lab. Photo for publication, August 28, 1947. Morgue 1947-1 (P-2) [Photographer: Donald Cooksey]

Topics

brobeck william brobeck joseph gilbert hamilton joseph gilbert hamilton california academy california academy sciences moss photography moss photography san francisco morgue nuclear research nuclear research facilities berkeley laboratory berkeley lab 1950 s men 1950 s 50 s high resolution ultra high resolution special events california academy of sciences science laboratory us national archives