bakerian lecture account new instruments di wheatstone charles (5 risultati)

(30 x 23,5 cm). SS. 303-327. Mit 2 Kupfertafeln. Moderne Broschur, unaufgeschnitten. (Aus: Philosophical Transactions of the Royal Society). Erste Ausgabe der Verifikation des Ohmschen Gesetzes. - "In 1843 Wheatstone published an experimental verification of Ohm's law, helping to make the law (already well known in Germany) more familier 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, originally invented by Samuel Christie" (DSB). - Die Tafeln gering stockfleckig, sonst sauber und wohlerhalten. - DSB 14, 289.

Hardcover. Condizione: Very Good. First Edition. Also contains Michael Faraday's "Experimental Researches in Electricity -- Eighteenth Series" (pp. 17-32) Also contains William Robert Grove's "On the Gas Voltaic Battery. Experiments Made with a View of Ascertaining the Rationale of Its Action and Its Application to Eudiometry" (pp. 91-112). viii, [1]-336, [2] pp. 4to. Library binding, tan leather spine with gold embossed titling. Interiors clean, ex-library stamp on title page, and occurring sporadically within. Numerous folding plates that illustrate articles. Pages were trimmed slightly when rebound. Crumpling and tears to p. 37/38, does not impact this article.

LeatherBound. Condizione: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Reprinted from 1843 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set and contains approximately 26 pages. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: English.

(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).

1st Edition. FIRST EDITION IN ORIGINAL WRAPS OF WHEATSTONE'S EXPERIMENTAL VERIFICATION OF OHM'S LAW, including a practical and simple formula by which to calculate resistance and current according to Ohm's law. In 1843, English scientist Charles Wheatstone gave a Bakerian lecture publicizing his " experimental verification of Ohm's law, helping to make the law (already well known in Germany) more familiar in England. In the lecture he also described new ways of measuring resistances and currents, including the rheostat and the so-called Wheatstone bridge, originally invented by Samuel Christie" (Dictionary of Scientific Biography, XIV, 290). "A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two circuit paths in a "bridge circuit," one of which includes the resistance to be measured. In 1833, British scientist Samuel Hunter Christie presented a Bakerian Lecture to the Royal Society that contained a method for comparing the resistances of wires of different thicknesses, the forerunner of the Wheatstone bridge" (History of Physics: The Wenner Collection). For whatever reason, Christie's work was largely ignored and "ten ten years later, in 1843, Wheatstone also gave a Bakerian lecture on the experimental verification of Ohm's law, to help make the law (already well known in Germany) more familiar in England. In the lecture, he also described ways of measuring resistances" and "introduced a unit of resistance in the form of a foot of copper wire that weighed around 6.5 grams. With this, he successfully showed how it could be applied to measure the length of wire from its resistance (ibid; McFadden, Interesting Engineering, 3.1.18). "Although Wheatstone attributed the method to Christie, it became known as the Wheatstone bridge" (Wenner). ALSO INCLUDED: Grove, On the Gas Voltaic Battery, pp. 91-113 WITH Sabine's Contributions to Terrestrial Magnetism, Parts IV & V, pp. 113-233. CONDITION & DETAILS: 4to. 12 plates. Original paper wraps showing some wear (see photo) and a few professional repairs, uncut. Enclosed in a custom black and maroon clamshell case, gilt-lettered at the spine. Bright and very clean within.