Atlas of Absorption Spectra (Classic Reprint)
Language: English
Published by Forgotten Books, 2017
- Softcover
- New
Seller: Forgotten Books, London, United KingdomForgotten Books
AbeBooks seller since June 2, 2021
Condition: New
£ 14.36
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Print on Demand. This book is an exhaustive study of the absorption spectra of various organic compound solutions, particularly the aniline dyes. The author constructed an apparatus that allowed him to record the absorption spectra of these solutions, both in the visible and ultraviolet regions. The resulting collection of absorption spectra provides a valuable resource for scientists and researchers in various disciplines, including spectroscopy, photography, and chemistry. The book's findings have significant implications for the development of color filters and other applications that require precise control over the transmission of light. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book.
Seller Inventory # 9781528402729_0
- Title
- Atlas of Absorption Spectra (Classic Reprint)
- Author
- Horace Scudder Uhler, Robert Williams Wood
- Publisher
- Forgotten Books
- Publication year
- 2017
- Condition
- New
- Book Type
- print-on-demand item
- Binding
- Paperback
- Language
- English
- ISBN 10
- 1528402723
- ISBN 13
- 9781528402729
- Seller catalogs
- Chemistry
For the removal or transmission of one or more isolated lines some other arrangement is often more useful than an absorbing screen. A spectroscope with a slit placed in the focus of the observing telescope (monochromatic illuminator) is frequently all that is necessary. But if more light is required, the following device may be used. A block of quartz from 2 to 4 cm. In thickness, cut perpendicular to the optic axis, is mounted between two Nicol prisms. The transmitted spectrum is crossed by black bands, which result from the rotatory power of the quartz. By adjusting the nicols and varying the thickness of the quartz it is often possible to get rid of the spectrum lines which are not desired, and at the same time to utilize the whole area of the source, which can never be done with the spec trosc0pe. In this way, with a quartz plate 45 mm. Thick, the line 4809 of the zinc arc in quartz can be completely removed and the two lines 472 r and 4679 transmitted. This method is especially useful in the study of the fluorescence excited in various bodies by monochromatic light.
If it is necessary to separate radiations of very nearly the same wave length, for example if we wish to work with the light of one of the two sodium lines, the following arrangement can be used A quartz plate about 2 cm. In thickness, cut parallel to the axis, is mounted between crossed nicols, with its axis making an angle of 45° with the principal planes of the polar izing prisms. The source is placed behind a vertical slit 2 or 3 mm. In width, and the light, after traversing the polarizing system is brought to a focus by a lens. A number of concentric maxima and minima will be formed, the light of D1 and D, being found in adjacent maxima. The wave-length which is not desired can be stopped by a screen of suitable dimensions placed at the focus of the lens. In this way it is possible to obtain a source of D1 or D: radiation of sufficient intensity to show distinct fringes in a Michelson interferometer. By a curious coincidence this method occurred independently to the writer and to Professor Michelson on the same day. It has been found to give excellent satisfaction. The thickness of the quartz plates used in either of the above cases depends upon the close ness of the lines which it is desired to separate.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
"Synopsis" may belong to another edition of this title.
Forgotten Books
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Forgotten Books’ Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the quality of the aged text.
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Forgotten Books publishes hundreds of thousands of rare and classic books.
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value.
The digital edition of all books may be viewed before purchase if you request a sample.
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