A High-School Astronomy: In Which the Descriptive, Physical, and Practical Are Combined, with Special Reference to the Wants of Academies and Seminaries of Learning
A High-School Astronomy: In Which the Descriptive, Physical, and Practical Are Combined, with Special Reference to the Wants of Academies and Seminaries of Learning
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 Excerpt: ...like our Alps and Andes; while others are circular, like the craters of huge volcanoes. Great numbers of the latter may be seen with telescopes of only moderate power. Through such an instrument, the moon will appear of a yellowish hue, and the circular mountains like drops of thick oil on the surface of water. Two ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 Excerpt: ...like our Alps and Andes; while others are circular, like the craters of huge volcanoes. Great numbers of the latter may be seen with telescopes of only moderate power. Through such an instrument, the moon will appear of a yellowish hue, and the circular mountains like drops of thick oil on the surface of water. Two extensive ranges, and several of the circular elevations, are shown in the last cut. Dr. Scoresby, of Bradford, England, who examined the moon through the monster telescope of Lord Rosse, says he saw a vast number of extinct volcanoes, some of whose craters were several miles in breadth. Her general appearance was that of a vast ruin of nature. Dr. Herschel supposed he saw the light of several active volcanoes upon her surface. 242. In regard to. the existence of an atmosphere around the moon, astronomers are divided. From observations during eclipses of the sun, and other phenomena, it is thought that if the moon has any atmosphere at all, it must be very limited in extent, and far less dense than that of the earth. Dr. Scoresby saw no indications of the existence of water, or of an atmosphere. From observations during several occultations of stars, the writer is of opinion that a refracting medium of some sort exists in the vicinity of the moon. The atmosphere Is doubtless subject to the general law of gravitation. Hence it is most dense at the earth's surface, and grows rare as we ascend. Inasmuch, therefore, as the general density of the atmosphere of any planet is dependent upon the attracting force of that planet, and the moon has only about T'5d part as much attracting power as the earth, it follows that her atmosphere, if she has one, ought to be much less dense than ours. 243. That ny water exists upon the moon's surface, 241. Form of lu...
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Add this copy of A High-School Astronomy: In Which The Descriptive, to cart. $49.76, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2010 by Kessinger Publishing.
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Add this copy of A High-School Astronomy: in Which the Descriptive, to cart. $52.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2010 by Kessinger Publishing.
Add this copy of A High-School Astronomy: in Which the Descriptive, to cart. $52.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2008 by Kessinger Publishing.
Add this copy of A High-School Astronomy: In Which The Descriptive, to cart. $70.14, new condition, Sold by Booksplease rated 4.0 out of 5 stars, ships from Southport, MERSEYSIDE, UNITED KINGDOM, published 2008 by Kessinger Publishing.
Add this copy of A High-School Astronomy: in Which the Descriptive, to cart. $73.07, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2008 by Kessinger Publishing.
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