Description: Description of Photograph This is an 8x12 inch Reproduction Photograph made from a high quality scan of the original. When evaluating the quality of the photo, please keep in mind that most photos in our collection were taken over 100 years ago. Title: 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 Creator(s): Harris & Ewing, photographer Date Created/Published: [19]37 June 9. Notes: Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. General information about the Harris & Ewing Collection is available at http://hdl.loc.gov/loc.pnp/pp.hec Temp. note: Batch four. Subjects: United States--District of Columbia--Washington (D.C.) Bookmark /hec2009009540/ Bookmark:hec2009009540 Bookmark:hec2009009540 Size Approximately 8x12 inches. Note: Some images may have white bars on the sides or top if the original image does not conform to the 8x12 dimensions. Want to purchase the Original? The original is not for sale. Return Policy We are so confident in the quality we provide that we back every order with a money-back guarantee! This means if you are not satisfied, for ANY reason, a refund will be given.(No need to return the photo) Quality This Photograph is a Archive Quality Reproduction created directly from the original photograph. Our laboratory uses premium DNP Dye-Sublimation Paper guaranteeing brighter colors, sharper whites, and prints that will last a lifetime. Shipping We have taken extra steps to ensure that your prints arrive to you safely and undamaged. We use extra thick, stay-flat envelopes to get your photos to you as quickly and as safely as possible. Source: Library of Congress, Washington, D.C.
Price: 11.99 USD
Location: Littleton, Colorado
End Time: 2025-01-01T19:19:28.000Z
Shipping Cost: 2.49 USD
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Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
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Brand: Unbranded
Type: Print
