Annals of the Lowell Observatory Volume . 1 download book
Annals of the Lowell Observatory Volume . 1 download book
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Author: Lowell Observatory
Page Count: 92 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781235931949
File size: 20 Mb
File Name: Annals.of.the.Lowell.Observatory.Volume...1.pdf
Download Link: Annals of the Lowell Observatory Volume . 1
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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. 1898 Excerpt: ...and early spring, nothing was visible; as the spring advanced, first the canals and then the spots began to appear; as spring passed into summer, both grew more and more evident; and so on into the full tide of midsummer manifestation. Evidently, then, the change of seasons was a factor in the process. But there is more in the matter than this. The development takes place in a manner to imply that something more immediate than the change in the seasons is concerned in it; immediate not in time, but in relation to the result. A comparison of the behavior of three spots--the Phoenix Lake, Ceraunius (the spot at the junction of the Iris and the Gigas), and the Cyane Fons (a spot where the Steropes, a newly found canal, and the Nilus meet)--will serve to point out what this something is. The Phoenix Lake lies in latitude 17 S., Ceraunius in latitude 12 N., and the Cyane Fons in latitude 28 N. In August of last year, the first of these markings was very conspicuous, the second but moderately so, while the third was barely discernible. By November the Phoenix Lake had become less salient, Ceraunius relatively more so, and the Cyane Fons nearly as evident as Ceraunius had formerly been. In the Martian calendar, the August observation corresponded to our 20th of June, the November one to our 1st of August. All three spots were within the equatorial regions. Now, on the Earth, no such marked progression in seasonal change occurs within the tropics. With us, it is to all intents and purposes equally green there the year through. On Mars it is not. Clearly, some more special factor beside the seasons enters into the matter upon our neighbor world. That this factor is water seems, from the behavior of the blue-green areas generally, to be pretty certain. But just as th...
Read online Annals of the Lowell Observatory Volume . 1 Buy and read online Annals of the Lowell Observatory Volume . 1 Download and read Annals of the Lowell Observatory Volume . 1 for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Annals of the Lowell Observatory Volume . 1
Annals of the Lowell Observatory Volume . 1 by Lowell Observatory
Author: Lowell Observatory
Page Count: 92 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781235931949
File size: 20 Mb
File Name: Annals.of.the.Lowell.Observatory.Volume...1.pdf
Download Link: Annals of the Lowell Observatory Volume . 1
---------------------------------------------------------------
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. 1898 Excerpt: ...and early spring, nothing was visible; as the spring advanced, first the canals and then the spots began to appear; as spring passed into summer, both grew more and more evident; and so on into the full tide of midsummer manifestation. Evidently, then, the change of seasons was a factor in the process. But there is more in the matter than this. The development takes place in a manner to imply that something more immediate than the change in the seasons is concerned in it; immediate not in time, but in relation to the result. A comparison of the behavior of three spots--the Phoenix Lake, Ceraunius (the spot at the junction of the Iris and the Gigas), and the Cyane Fons (a spot where the Steropes, a newly found canal, and the Nilus meet)--will serve to point out what this something is. The Phoenix Lake lies in latitude 17 S., Ceraunius in latitude 12 N., and the Cyane Fons in latitude 28 N. In August of last year, the first of these markings was very conspicuous, the second but moderately so, while the third was barely discernible. By November the Phoenix Lake had become less salient, Ceraunius relatively more so, and the Cyane Fons nearly as evident as Ceraunius had formerly been. In the Martian calendar, the August observation corresponded to our 20th of June, the November one to our 1st of August. All three spots were within the equatorial regions. Now, on the Earth, no such marked progression in seasonal change occurs within the tropics. With us, it is to all intents and purposes equally green there the year through. On Mars it is not. Clearly, some more special factor beside the seasons enters into the matter upon our neighbor world. That this factor is water seems, from the behavior of the blue-green areas generally, to be pretty certain. But just as th...
Read online Annals of the Lowell Observatory Volume . 1 Buy and read online Annals of the Lowell Observatory Volume . 1 Download and read Annals of the Lowell Observatory Volume . 1 for pc, mac, kindle, readers Download to iPad/iPhone/iOS, B&N nook Annals of the Lowell Observatory Volume . 1