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Philosophical Transactions Volume 170, PT. 2 (Paperback) Loot Price: R558
Discovery Miles 5 580
Philosophical Transactions Volume 170, PT. 2 (Paperback): Royal Society

Philosophical Transactions Volume 170, PT. 2 (Paperback)

Royal Society

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Loot Price R558 Discovery Miles 5 580

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ...f, by a metal chain. The bar and pendulum are on opposite sides of the horizontal axis of the tube, as shown in the plan, so that when properly exhausted and the pole a made negative, the shadows of bar and pendulum shall fall side by side on the screen, as shown in fig. 10a. On swinging the pendulum, the shadow alternately overlaps and recedes from the shadow of the bar (figs. 10b and 10c). This apparatus was tried many times with an induction coil, and also with a Holtz machine; but the results were not sufficiently definite to render it safe to draw any inference from them. By the kindness of Mr. De La Rue, I have lately had the opportunity of experimenting with his large chloride of silver battery, and the results now come out with great sharpness and with none of the flickering and indecision met with when working with an induction coil. The tube was so adjusted that the pendulum hung free, and a narrow line of molecular discharge passed between the edges of the bar and the pendulum, forming a line of light between the two shadows on the screen (fig. 10a). When the pendulum was set swinging, and the idle pole f connected with it was kept insulated, the regular appearance of the moving and fixed shadows was very slightly interfered with. That is to say, the shadows followed the successive positions between those shown in figs. 10b and 10c almost as if they had been cast by a luminous point in place of the negative pole. As the shadow of the swinging pendulum came very near that of the bar, the latter shadow seemed to shrink away, showing that the pendulum itself exerted slight repulsion on the molecules which passed close to its edge. The pendulum was again set stationary, as shown on the plan (fig. 11), the line of light separating the two...


Imprint: Rarebooksclub.com
Country of origin: United States
Release date: August 2012
First published: August 2012
Authors: Royal Society
Dimensions: 246 x 189 x 8mm (L x W x T)
Format: Paperback - Trade
Pages: 148
ISBN-13: 978-1-130-23180-9
Categories: Books
LSN: 1-130-23180-1
Barcode: 9781130231809

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