The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 48
ex-pressed in either of two ways—first, in the ordinary way, bystating directly the vertical distance through which the bodywas raised; and second, by stating the amount of work re-quired to carry 1 pound of matter from the lower to the higherlevel. This difference in level, then, defines a very… … Dote Fi& 16 Fig I?. Smple Illustration of Potential enerqu due. to dilierence >tential Lnerqu. of head of two bodies of water 3}i
Telegraph, Wireless · Radio
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