The outlines of physics: an elementary text-book (1897)
Nichols, E. L. (Edward Leamington), 1854-1937 · New York, The Macmillan Company; London, Macmillan & Co., Ltd. · leaf 350
ratory. If, for example, two wooden blocksbe struck together in the further corner of the room, the flame re-sponds. The jingling of a bunch of keys will produce the same result. 1 In some localities, especially if the laboratory is situated at a lowerlevel than the gas-works, the pressure Is… … 336 THE OUTLINES OF PHYSICS A shrill whistle made by blowing across the open end of a tube is alsoeffective, and if the flame be properly adjusted the utterance of anyword with a syllable containing a sibilant with moderate loudness, oreven when whispered, will suffice. Note the great promptness…
Physics
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