It has been the aim of the authors to give in this book a brief, simple, and accurate account of the heavens as they are known to astronomers of the present day. It is believed that there is nothing in the book beyond the comprehension of readers of ordinary intelligence, and that it contains all the information on the subject of astronomy that is needful to a person of ordinary culture. The authors have carefully avoided dry and abstruse mathematical calculations, yet they have sought to make clear the methods by which astronomers have gained their knowledge of the heavens. The various kinds of telescopes and spectroscopes have been described, and their use in the study of the heavens has been fully explained.
€293.25
购买此电子书可免费获赠一本！
语言 英语 ● 格式 PDF ● 网页 377 ● ISBN 9781536154924 ● 编辑 J. A. Gillet ● 出版者 Nova Science Publishers, Inc. ● 发布时间 2019 ● 下载 3 时 ● 货币 EUR ● ID 7052718 ● 复制保护 Adobe DRM
需要具备DRM功能的电子书阅读器
来自同一作者的更多电子书 / 编辑
4,978 此类电子书
