Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 26
mm. diameter, its turns being 10 cm. diameter, theirpitch, or distance apart longitudinally, may be about 1 cm.,the whole coil being about 2 m. long, thus contains eabout 2 turn Each turn of the coil should be supportedbv a fine silk thread in the form of a V as shown, each limbof the V being about… … F - -Wave Apparatus. in order that, when liberated, it should assume the dimensionsgiven above, which are those it should have when finishedand in u- The zes are chosen to insure a slow ad vanof the disturbance from one end to the other, and cannotwithout disadvanu _ be departed from at random.…
Sound
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