wheatstone bridge (3 resultados)

Soft cover. Condición: Very Good. WHEATSTONE, Charles. An Account of Several New Instruments and Processes for Determining the Constants of a Voltaic Circuit." In: Philosophical Transactions of the Royal Society. London, Vol. 133, Part II, 1843, pp. 303-327, with two folding plates (XVI-XVII). This is the entire Wheatstone paper, disbound from the l;arger bound volume. Very good condition overall, except that the plates have some foxing and are in GOOD condition. [++] "In 1843 Wheatstone published an experimental verification of Ohm's Law, helping to make the law (already well known in Germany) more familiar in England. In connection with the verification he developed new ways of measuring resistances and currents. In particular, he invented the rheostat and popularized the Wheatstone bridge"--Complete DSB online.

(London, Richard Taylor, 1833). 4to. No wrappers as extracted from "Philosophical Transactions" 1833 - Part I. Pp. 95-142 a. 2 engraved plates (showing the apparatus, the Wheatstone Bridge). First appearance of the paper in which Christie describes his invention of the electrical circuit meant to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component. It was later (1843) improved and popularized by Charles Wheatstone, and then baptized "Wheatsone's Bridge". Wheatstone called the circuit a "Differential Resistance Measurer." "Christie?s paper "Experimental Determination of the Laws of Magneto-electric Induction" was the Bakerian lecture for 1833. In it Christie showed that "the conducting power, varies as the squares of [the wires?] diameters directly, and as their lengths inversely." He also concluded that voltaelectricity, thermoelectricity, and magnetoelectricity are all conducted according to the same law, which lent further support to the theory that all these electricities are identical. In this paper (the paper offered) Christie also gave the first description of the instrument that came to be known as the Wheatstone bridge."(DSB).

(London, Richard and John E. Taylor, 1843). 4to. No wrappers as extracted from "Philosophical Transactions" 1843 - Part II. Pp. 303-327 and 2 lithographed plates. Frst appearance of an importent paper in the history of electricity. "In 1843 Wheatstone published an experimental verification of Ohm's law, helping to make the law (already well known in Germany) more familiar in England. In connection with the verification he developed new ways of measuring resistances and currents. In particular, he invented the rheostat and popularized the Wheatstone bridge (in the paper offered), originally invented by Samuel Christie."(DSB).