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. 1856 Excerpt: ...does really exist. are often referred to, as affording the same exterior fringes. Now if we place the blade of a sharp razor with a round back in the sun's light, as in fig. 52, we shall, by placing the eye in the different positions and shading it when required, see both inflected, and deflected or reflected light to ...
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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. 1856 Excerpt: ...does really exist. are often referred to, as affording the same exterior fringes. Now if we place the blade of a sharp razor with a round back in the sun's light, as in fig. 52, we shall, by placing the eye in the different positions and shading it when required, see both inflected, and deflected or reflected light to come from A and B. There is this difference, however, the sharp edge A gives a feeble reflected light compared with the round back B, but it gives an inflected light far stronger and visible much further into the shadow. These in fig. 52 are supposed to be represented by the closeness of the lines drawn to represent the rays. Now the existence of these inflected and deflected rays being easily visible, it is clear we have sufficient causes for the interference which we see, without any other theory, and they cannot be neglected. M. Fresnel's later method, which has been generally adopted, was an extension of Huygens's principle, as explained in discussing the law of the ordinary refraction of light. The wave from a luminous origin F, on arriving at an opaque screen AB, being partially interrupted, the portion Apmnc being supposed made up of elementary origins as mn, the integral effect or sum of the effects of these at a point P was considered to give the intensity of the light at P. This method of solution gives very nearly the same results as Dr. Young's method without begging half an interval. The difference between the solutions being very slight, M. Fresnel states Annates de Chimie et de Physique for 1819, tome xi. p. 246. that a re-examination of the experiments showed them nearer to his later than to his former method, which was Dr. Young's. Now this method of considering a wave in any position as made up of the elementary origins of ne...
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New. Trade paperback (US). Glued binding. 136 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Seller's Description:
Fine. Trade paperback (US). Glued binding. 136 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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New. Trade paperback (US). Glued binding. 136 p. Intended for a juvenile audience. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.