Rudimentary Magnetism. 3 PT. [In 2]

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. 1872 Excerpt: ... the curves. This very beautiful physical question constitutes, as before observed (201), the principal feature of Lambert's fine mathematical paper in the Berlin Memoirs, and has further engaged the attention of several eminent philosophers. Dr. Roget, the talented author of the treatise on ' Magnetism, ' published by ... Read More

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. 1872 Excerpt: ... the curves. This very beautiful physical question constitutes, as before observed (201), the principal feature of Lambert's fine mathematical paper in the Berlin Memoirs, and has further engaged the attention of several eminent philosophers. Dr. Roget, the talented author of the treatise on ' Magnetism, ' published by the Society for the Diffusion of Useful Knowledge, has also treated this question with considerable ability. Not only has he given many interesting demonstrations of the fundamental properties of the magnetic curve, but has also described a mechanical instrument for generating them. In referring to figs. 16,17,18 (28), we may perceive that the magnetic curve is either convergent, as in figs. 16 and 17, or divergent, as in fig. 18, according as we employ one or more magnets, and according as we refer the forces to similar or dissimilar poles. If we conceive (fig. 16) each small particle of iron to be an indefinitely small needle free to move in any direction, it would necessarily arrange itself in a given determinate position in respect of the forces in action. In fact, it may be demonstrated, that supposing the magnetic force to vary in the inverse duplicate ratio of the distance, the direction of the axis of a magnetic needle, placed at a given distance from the centre of the magnet, will be always a tangent to the 'Journal of the Boyal Institution, ' February 1831. Fig. 122. point of curvature of one of those peculiar oval curves indicated in the figure (28). Taking, therefore, the ferruginous particles as indefinitely small magnetic needles, we may conceive the line of curvature at any given distance from the centre as made up of a series of such small needles. With respect to the curve itself, it may be considered, geometrically, as generat... Read Less

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  	Edition: 2010, Nabu Press Trade paperback, Good	Details: ISBN: 1146491999 ISBN-13: 9781146491990 Pages: 468 Publisher: Nabu Press Published: 2010 Language: Romanian Alibris ID: 17937472458	Shipping Options: Standard Shipping: $4.49 Choose your shipping method in Checkout. Costs may vary based on destination.
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2010, Nabu Press, Charleston SC ISBN-13: 9781146491990 Romanian Trade paperback See All from $68.52