| 单词 | Nicol prism |
| 例句 | On the table of the sahibs are scattered lots of Nicol prisms, lens and eye-pieces. India Ink: For the Indian Father of the 'God Particle,' a Long Journey from Dhaka 2012-07-06T10:08:03Z The Nicol prism, which serves as a polarizer, can, after turning the iris-diaphragm aside, be drawn out from under the latter. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z The color changing device, consisting of Nicol prism and quartz plate, is fitted with a divided circle reading to single degrees. Astronomical Instruments and Accessories Among others, the carefully considered modifications of the Nicol prism which have recently been devised by Prof. S.P. Scientific American Supplement, No. 441, June 14, 1884. Let us now mount our Nicol prisms, and cross them as we crossed the tourmaline. Six Lectures on Light Delivered In The United States In 1872-1873 Light is polarized in several ways—by reflection, by transmission, but most commonly through what I have here, a prism of calcite, or Iceland spar, commonly called a Nicol prism. The Treasure-Train The zero position of the Nicol prism is indicated by a line, as well as the angles 90, 180, 270°. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z The circle revolving with the Nicol prism for changing the intensity of the star, has a diameter of 14 cm. and reads by means of two verniers to 6 min. Astronomical Instruments and Accessories We have, first, our electric lamp, then a Nicol prism, to polarize the beam emergent from the lamp; then an electro-magnet, then a second Nicol, and finally our screen. Six Lectures on Light Delivered In The United States In 1872-1873 Two Nicol prisms play the same part as the two plates of tourmaline. Six Lectures on Light Delivered In The United States In 1872-1873 A Nicol prism large enough to embrace the entire beam of the electric lamp was placed between the lamp and the experimental tube. Six Lectures on Light Delivered In The United States In 1872-1873 The rotation of the Nicol prism with the vernier is performed by means of an endless screw. Microscopes and Accessory Apparatus Catalogue No. 40 2011-04-14T02:00:42.743Z I shall immediately ask you to follow me while I endeavour to explain the effects observed when a film of gypsum is placed between the two Nicol prisms. Six Lectures on Light Delivered In The United States In 1872-1873 Looking at various points of the blue firmament through a Nicol prism, and turning the prism round its axis, we soon notice variations of brightness. Six Lectures on Light Delivered In The United States In 1872-1873 It may be utterly quenched by a Nicol prism, the cloud from which it issues being caused to disappear. Six Lectures on Light Delivered In The United States In 1872-1873 With his large Nicol prisms he in the first place repeated and explained the experiments of Foucault and Fizeau, and subsequently enriched the subject by very beautiful additions of his own. Six Lectures on Light Delivered In The United States In 1872-1873 |
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