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December 14, 1946

Environmental Warmth and Its Measurement: A Book of Reference Prepared for the Royal Naval Personnel Research Committee of the Medical Research Council

JAMA. 1946;132(15):959. doi:10.1001/jama.1946.02870500065025

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This small and timely booklet sets forth in nontechnical language descriptions of the various instruments used in measuring environmental warmth—both radiant and kinetic—and the methods of evaluating the significance of their readings. The recent years of prolonged naval action in tropical waters brought a keen appreciation of the debilitating and efficiency lowering effects of hot environments on exposed personnel. Radiant and so-called wild heat became very important in combat vessels during periods of action or alert, presenting acute problems in personnel welfare and efficiency. Recognition of these problems and the need for their solution led to the preparation of this booklet as a first step in the collection of needed facts. The U. S. Navy already is air conditioning its newly constructed combat ships, and the beneficial results in improved health and efficiency of the ships' personnel are already obvious. Since workers in the medical sciences rarely have a clear

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