
One zenith may be carried directly north; the other zenith may be carried obliquely towards the east or west, These varied results will be most marked on those meridians which have about fifteen, sixteen, seventeen, nineteen, twenty, and twenty-one hours of right ascension. The detailed effect will be found fully explained inC hapter XIII. By a knowledge of this second rotation results can be arri...
Paperback: 322 pages
Publisher: Forgotten Books (June 16, 2012)
Language: English
ASIN: B008GXXI7K
Product Dimensions: 6 x 0.7 x 9 inches
Format: PDF ePub Text djvu book
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- Alfred Wilks Drayson books
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minute accuracy by calculation, which results have hitherto been obtained, and then only for very short periods, by continued and laborious observation. The effect of the second rotation as at present occurring, when traced back during 20,000 years, is to have produced a very great annual variation of climate in both hemispheres of the earth, more particularly in latitudes from 50 up to the poles, an arctic climate in winter reaching to about 54 latitude in each hemisphere, and these annual variations prevailing during about J5,000 years, the date of the height of this period being about 13,544 B.C. Whilst, therefore, a knowledge of this movement of the earth enables a geometrician to arrive by calculation at results hitherto unattainable by such means, it also gives a cause for those glacial effects, the history of which is written on the rocks themselves. Those persons who will examine the simple details of the second rotation will probably perceive that it is merely an accurate description of a movement of the earth, which movement has hitherto been described in a slovenly an4 vague manner.(Typographical errors above are due to OCR software and don't occur in the book.)About the PublisherForgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.Forgotten Books' Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention h