"Galvanometer" Quotes from Famous Books
 ... objections advanced against this conception by sceptical critics are as follows: "(1) The mental vibratory motion, or vibratory waves, are not known to science, nor recorded on scientific instruments such as the galvanometer. What is the rate of such vibrations, and what is their general character? (2) Granted the existence of such vibratory energy, or thought-waves, how and by means of what channel does the second person receive them from the first person? How are they registered ...
— Genuine Mediumship or The Invisible Powers • Bhakta Vishita
... passed through a coil and deflected a suspended magnet to the right or left, according to the direction of the current. A mirror attached to the suspension magnified the movement of the needle, and indicated the signals after the manner of the Thomson mirror galvanometer. This telegraph, which was large and clumsy, was nevertheless used not only for scientific, but for general correspondence. Steinheil, of Munich, simplified it, and added an alarm in the form of ...
— Heroes of the Telegraph • J. Munro
... current flows through the cell and acts upon the selenium. Between the bridge and the cell is a reversing switch, so that the current can be reversed through the cell without changing its course through the bridge. A Bradley tangent galvanometer is used, employing the coil of 160 ohms resistance. The Leclanche battery is exclusively used in measurements ...
— Scientific American Supplement, No. 492, June 6, 1885 • Various
... aid of a needle moving over a dial, or by means of a mirror, which is not shown in the figure. Finally, there is a lateral scale, R, which carries a magnetized bar, A, that may be slid toward the galvanometer. This magnet is capable of rendering the needle less sensitive or of making it astatic. In order to facilitate this operation, the magnet carries at its extremity a tube which contains a bar of soft iron that may be moved slightly so as to vary the length of the magnet. Prof. Zenger calls this ...
— Scientific American Supplement, No. 421, January 26, 1884 • Various |
