An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 36. rubber tube the electro-magnetic waves will be reflected from the zinc,and, interfering with the direct waves, will produce stationary waves. Atthe nodes of these waves the resonator shows no effect, but at the loops itsparks. Doubling the distance between two consecutive nodes we havethe wave-length, or the distance traveled by the disturbance during onecomplete vibration of the vibrator, and, multiplying by the number ofvibrations per second, we have the velocity with which the d
An international system of electro-therapeutics : for students, general practitioners, and specialists . Fig. 36. rubber tube the electro-magnetic waves will be reflected from the zinc,and, interfering with the direct waves, will produce stationary waves. Atthe nodes of these waves the resonator shows no effect, but at the loops itsparks. Doubling the distance between two consecutive nodes we havethe wave-length, or the distance traveled by the disturbance during onecomplete vibration of the vibrator, and, multiplying by the number ofvibrations per second, we have the velocity with which the disturbancetravels. 95. Electro-magnetic Theory of Light.—The velocity thus deter-mined turns out to be practically the same as that of light, and this is a A-62 DUFF. strong confirmation of the theory otherwise almost proven, that lightwaves are simply electro-magnetic waves, but of immensely smallerlength than any ordinary electro-magnetic waves. Light waves are lessthan one-forty-thousandth inch in length, whereas the waves obtained asdescribed are several feet or even hundreds of feet long,—a
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectuterus, bookyear1894
