Delbar Pouleur Keily with radiosonde, 1950s
Description
Delbar Pouleur Keily sits at a table with a radiosonde. A blackboard is visible in the background. Original caption: "Prof. Delbar P. Keily, MIT Dept. of Meteorology, points to an air pressure measuring device which is used to sound the atmosphere to heights exceeding 20 miles."
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Delbar Pouleur Keily with radiosonde, 1950s
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