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Sinopsis
Excerpt from The Spectroscope and Its Work
White is always regarded as the emblem of purity. Ruthless science tears it to pieces and convinces us that it is the most complex of all the colours in Nature.
The red of a tulip, the green flash Of an emerald, the purple of a violet, all seem to give us something more than the whiteness of the lily, such slaves are we to ideas gained from laying on paint. The truth is, they all give us much less. The lily gives back all the light that falls upon it the tulip, the violet, and the emerald, each lighted by the same sunlight, gives back only a small part and suppresses all the rest not one of the three adds anything to the sunlight which makes them visible each abstracts a great deal from it and suppresses it, and shines with but a small part of the light that falls upon it. Hence, in the evening, when the daylight dies away, the white lilies, giving back all the light that falls upon them, seem to stand out visible long after the gayer flowers have dis appeared in the dusk.
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.
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Reseña del editor
Excerpt from The Spectroscope and Its Work
White is always regarded as the emblem of purity. Ruthless science tears it to pieces and convinces us that it is the most complex of all the colours in Nature.
The red of a tulip, the green flash Of an emerald, the purple of a violet, all seem to give us something more than the whiteness of the lily, such slaves are we to ideas gained from laying on paint. The truth is, they all give us much less. The lily gives back all the light that falls upon it the tulip, the violet, and the emerald, each lighted by the same sunlight, gives back only a small part and suppresses all the rest not one of the three adds anything to the sunlight which makes them visible each abstracts a great deal from it and suppresses it, and shines with but a small part of the light that falls upon it. Hence, in the evening, when the daylight dies away, the white lilies, giving back all the light that falls upon them, seem to stand out visible long after the gayer flowers have dis appeared in the dusk.
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.
Reseña del editor
Excerpt from The Spectroscope and Its Work
To any one, who takes up this primer with the hope of getting to know something of the work of the spectroscope, I would point out that it is at best an attempt to describe some of the elements of a subject wherein the guiding phenomena are wonderfully beautiful, but also complicated in spite of their seeming simplicity. In such a case verbal descriptions may be misleading. I am almost tempted to strike out the reiterated title printed on every other page and to substitute the words "Study the phenomena themselves." The book will have missed its point, if it does not stir up the reader to wish to see for himself.
To those who use the book as a help in teaching, I should be grateful for all hints that would tend to remove error and obscurity from it and make it more serviceable for their purpose.
I wish to express my obligations to the Royal Society, the Royal Astronomical Society, Sir Norman Lockyer, Major E. H. Hills, Professor G. E. Hale, Professor E. E. Barnard, and the editors of the Astrophysical Journal, for permission to reproduce plates in illustration of the subject. These plates will be found at the end of the book.
Professor A. M. Worthington has rendered me great help by suggestions made after reading the proof sheets of all the earlier chapters of the book. I am glad to have this opportunity of thanking him.
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.
"Sobre este título" puede pertenecer a otra edición de este libro.
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The Spectroscope and Its Work (Classic Reprint)
Impresión bajo demandaLibrería: Forgotten Books, London, Reino Unido
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Paperback. Condición: New. Print on Demand. This book demystifies the composition and properties of light. The author meticulously explains how light refracts to form a spectrum, and then goes on to explore what this means. From the discovery that white light is not pure, to the development of tools that can analyze light, this book charts the evolution of our understanding of the very nature of light itself. The author shows how the spectroscope has unlocked countless mysteries of the universe, shining a light on the composition of stars and planets and leading to new insights into the very nature of matter. 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. print-on-demand item. Nº de ref. del artículo: 9781332282524_0
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The Spectroscope and Its Work Classic Reprint
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PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781332282524
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The Spectroscope and Its Work Classic Reprint
Librería: PBShop.store UK, Fairford, GLOS, Reino Unido
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PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781332282524
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