"Electric resistance" Quotes from Famous Books
 ... telephone, sounds are first transmuted into electric vibrations and afterwards reshaped into sonorous waves. You know, also, that we have used a ray of light to send telephonic messages, through the sensitiveness of a certain metal which changes its electric resistance in accord with the intensity of the light that strikes it. Thus with a beam of light we can reproduce the human voice. Well, what we have done awkwardly and tentatively by the aid of imperfect mechanical contrivances, Nature has here accomplished ...
— A Columbus of Space • Garrett P. Serviss |
