Tractatus De Globis Et Eorum Usu Volume 79; A Treatise Descriptive Of The Globes Constructed By…

Paperback | May 20, 2012

byRobert Hues

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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. 1889 Excerpt: ...namely, that Eumbes, though continued never so farre, doe not passe through the Poles. For seeing that the same Kumbe is equally inclined to all Meridians--and all Meridians doe passe through the Poles--it would then follow that if a Rumbe should passe through the Poles, the same line in the same point would crosse infinite other lines; which is impossible, because that a part of any Angle cannot bee equall to the whole. Neither doth that which we delivered in the last Proposition make anything against this Consectary; to wit, that betwixt any two Parallels of equall distance, equall portions of the same Rumbe may be intercepted, that so it should thence follow that the segment of any Eumbe intercepted betwixt the Parallel of 80 gr. of latitude and the Pole is equall to a segment of the same Rumbe, intercepted betwixt the Equator and the Parallel of tenne gr. of latitude: and the reason is, because the Pole is no Parallel. And therefore it was a true Position of Nonius that the Rumbes doe not enter the Poles, although it was not demonstrated with the like happy successe. For hee assumes foundations contrary to the truth, as wee said before. And Gemma Frisius also was mistaken when he affirmed, in his Append, ad 15 Cap. Appian, Cosmogr., that L. 2,0.24. the Rumbes doe concurre in the Poles, which was the opinion also of some others, who are therefore justly taxed c. 17. by Michael Coignet. These things being well considered, it will be easie to understand what manner of lines a ship, following the direction of the Magnet, doth describe in the Sea. If the forepart of the Ship be directed toward the North or South, which are the quarters that the Magneticall Needle alwayes pointeth at, your course will be alwayes under the same Meridian: because, as wee shewed...

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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. 1889 Excerpt: ...namely, that Eumbes, though continued never so farre, doe not passe through the Poles. For seeing that the same Kumbe is equally...

Format:PaperbackDimensions:122 pages, 9.69 × 7.44 × 0.26 inPublished:May 20, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217903568

ISBN - 13:9780217903561

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