Excerpt from Elementary Astronomy: A Beginner's Text-Book
The first notions of Astronomy are acquired in the study of Geography. Geography lays special stress on the fact that the surface of the Earth is in a state of constant change. Its oceans and its atmosphere are subject to tides; its surface is leveled for the sites of cities and towns; its mines and quarries are explored for substances useful to mankind. Men navigate its seas and use its soils to produce the food that supports them. Its ceaseless changes, natural and artificial, give to it a kind of life - for the sign of life is change.
Geography teaches, also, that the Earth is one of the planets, but in this larger relation says little or nothing of changes taking place in the solar system. The young student is very apt to conclude that the other planets of whose existence he knows - Venus and Jupiter for example - are changeless, immutable; that they are bright points of light without a history. This was the view of the ancients.
The special business of Astronomy is to develop the ideas of the student so that he may understand that all the bodies of the Solar system - the Sun and all the planets - are themselves subject to ceaseless changes and are thus endowed with a kind of life. Not only this; the bodies throughout the whole universe - Sun and stars alike - are perpetually altering both their places and the arrangement of their separate parts. Our life on the Earth, for instance, would quickly cease were it not for changes in the Sun.
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Paperback. Condition: New. Print on Demand. This book dives into astronomy, the science that explores the origins and evolution of the universe and everything within it. Covering a vast timeline from the first notions of astronomy to present-day discoveries, the author explains how the universe operates and its impact on our lives. The book traces the development of astronomy from its humble beginnings to the scientific discipline it is today, shedding light on the history and contributions of notable astronomers. It explores fundamental concepts such as space, the celestial sphere, and definitions related to astronomy, providing a solid foundation for understanding the subject. With clear explanations, illustrative examples, and a glimpse into the latest astronomical discoveries, this book is an ideal companion for anyone seeking to unravel the mysteries of the cosmos and understand our place within it. 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. Seller Inventory # 9781330267363_0
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330267363
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330267363
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Condition: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 476 | Sprache: Englisch | Produktart: Bücher. Seller Inventory # 25711224/2
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