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New radio meteorograph developed for the U.S. Navy. Washington, D.C., June 9. The National Bureau of Standards has recently developed for the U.S. Navy Meteorological Service a new radio meteorograph. The new instrument (shown in the picture) is sent up on a 5-Foot balloon and is expected to replace the use of airplanes in upper-air meteorological surroundings. E.G. Lapham, Associate Physicist of the bureau, is shown assembling the new meteorograph in preperation for an ascent. The device transmits audio notes which are a function of temperature and humidity. These notes are interrupted at approximately each 10-millibar increment in pressure, thus identifying each temperature and humidity indication with its respective increment of altitude, 6937
Marshall A. Musick before Civil Liberties
Hop picker, once Nebraska farm owner. Polk County, Oregon. See general caption number 45
[Portrait of Robert Fisher] - Public domain portrait print
Marshall A. Musick before Civil Liberties
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New radio meteorograph developed for the U.S. Navy. Washington, D.C., June 9. The National Bureau of Standards has recently developed for the U.S. Navy Meteorological Service a new radio meteorograph. The new instrument (shown in the picture) is sent up on a 5-Foot balloon and is expected to replace the use of airplanes in upper-air meteorological surroundings. E.G. Lapham, Associate Physicist of the bureau, is shown assembling the new meteorograph in preperation for an ascent. The device transmits audio notes which are a function of temperature and humidity. These notes are interrupted at approximately each 10-millibar increment in pressure, thus identifying each temperature and humidity indication with its respective increment of altitude, 6937
Gathering meteorological data from stratosphere. Dr. L.F. Curtiss, of the U.S. Bureau of Standards, is shown here with part of the equipment he uses in experiments using radio to gather meteorological data at great altitudes. The complete radio apparatus for attachment to a balloon weighs less than two pounds, and preliminary trials show that the signals can be heard clearly at altitudes of 14 miles and at distances of 80 miles. A direction finder [...]bles experimenters to determine the location [...] he balloon the instant the radio wave is [...] out. 10/17/35
U.S. experts test weather device. Washington, D.C., Sept. 13. Scientists of the National Bureau of Standards today conducted a test of the new radiometeorograph, a device attached to parachute and balloon and sent into the skies to radio back signals giving the pressure, temperature and humidity of the upper air. Preparing the balloon for the ascension are Dr. L.V. Astin, (left) of the Bureau's Electrical Division, and Dr. L.F. Curtiss, head of the Radium Division. The balloon carries the instrument as high as 50,000 or 60,000 feet. 9 to 11 miles high. Today's test was conducted for the U.S. Weather Bureau. 9/13/37
Measuring relative humidity by radio. Washington, D.C. June 9. The hair element for measuring relative humidity in radio weather sounding balloons has proved innacurate because of very slow response at the cold temperatures encountered in the upper atmosphere. F.W. Dunmore, Radio Engineer of National Bureau of Standards, has just developed a new device for the U.S.Navy which will overcome this effect and at the same time will not be affected in response by temperature. He is shown in the photograph observing a graph on the recorder being produced by radio signals from an ascending balloon carrying the new device. This is the first record obtained with this new developement and shows a repidity of response much greater than the hair hygrometers Hitherto used. 6/9/37
U.S. experts test weather device. Washington, D.C., Sept. 13. Scientists of the National Bureau of Standards today conducted a test of the new radiometeorograph, a device attached to parachute and balloon and sent into the skies to radio back signals giving the pressure, temperature and humidity of the upper air. Preparing the balloon for the ascension are Dr. L.V. Astin, (left) of the Bureau's Electrical Division, and Dr. L.F. Curtiss, head of the Radium Division. The balloon carries the instrument as high as 50,000 or 60,000 feet. 9 to 11 miles high. Today's test was conducted for the U.S. Weather Bureau. 91337
Final check, weather device. Washington, D.C., Sept. 13. L.L. Stockman, also of the Bureau of Standards, Radium Division, uses a wave meter to check the radiometeorograph before attaching it to the parachute and the balloon. When the inflated bag breaks, which it usually does after several hours flying, the instrument is parachuted to the ground. Many times the instrument is found and returned to the bureau. The radiometeorograph contains two radio tubes, a miniature dry cell battery and devices which record and send the weather signals which, in turn, are recorded on a chronograph in Dr. Astin's bood [?] radio room.
Gathering meteorological data from stratosphere. Dr. L.F. Curtiss, of the U.S. Bureau of Standards, is shown here with part of the equipment he uses in experiments using radio to gather meteorological data at great altitudes. The complete radio apparatus for attachment to a balloon weighs less than two pounds, and preliminary trials show that the signals can be heard clearly at altitudes of 14 miles and at distances of 80 miles. A direction finder ...bles experimenters to determine the location ... he balloon the instant the radio wave is ... out. 101735
Receiving stratosphere weather data. B.W. Brown, of the U.S. Bureau of Standards staff, is shown here at the radio receiving set which captures signals from a new type of transmitter used in gathering meteorological data from an altitude of 14 miles
Measuring relative humidity by radio. Washington, D.C. June 9. The hair element for measuring relative humidity in radio weather sounding balloons has proved innacurate because of very slow response at the cold temperatures encountered in the upper atmosphere. F.W. Dunmore, Radio Engineer of National Bureau of Standards, has just developed a new device for the U.S.Navy which will overcome this effect and at the same time will not be affected in response by temperature. He is shown in the photograph observing a graph on the recorder being produced by radio signals from an ascending balloon carrying the new device. This is the first record obtained with this new developement and shows a repidity of response much greater than the hair hygrometers Hitherto used. 6937
New radio meteorograph developed for the U.S. Navy. Washington, D.C., June 9. The National Bureau of Standards has recently developed for the U.S. Navy Meteorological Service a new radio meteorograph. The new instrument (shown in the picture) is sent up on a 5-Foot balloon and is expected to replace the use of airplanes in upper-air meteorological surroundings. E.G. Lapham, Associate Physicist of the bureau, is shown assembling the new meteorograph in preperation for an ascent. The device transmits audio notes which are a function of temperature and humidity. These notes are interrupted at approximately each 10-millibar increment in pressure, thus identifying each temperature and humidity indication with its respective increment of altitude, 6/9/37
Summary
Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description
Tags
district of columbia
washington dc
glass negatives
new
radio
meteorograph
new radio meteorograph
navy
national
national bureau
standards
meteorological
service
navy meteorological service
radio meteorograph
instrument
balloon
airplanes
upper air
surroundings
lapham
associate
physicist
associate physicist
preperation
ascent
device
notes
function
temperature
humidity
increment
pressure
indication
humidity indication
altitude
national bureau of standards
us navy
united states history
library of congress
Date
1937
Contributors
Harris & Ewing, photographer
Location
Washington, District of Columbia, United States
,
38.90719, -77.03687
Source
Library of Congress
Link
Copyright info
Public Domain