The knowledge of the heavens and the earth made easy: or, the first principles of astronomy and geography. Explain'd by the use of globes and maps with a solution of the common problems by a plain scale and compasses as well as by the globe / Written several years since for the use of learners.

  • Watts, Isaac, 1674-1748.
Date:
1728
Catalogue details

Licence: Public Domain Mark

Credit: The knowledge of the heavens and the earth made easy: or, the first principles of astronomy and geography. Explain'd by the use of globes and maps with a solution of the common problems by a plain scale and compasses as well as by the globe / Written several years since for the use of learners. Source: Wellcome Collection.

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    once in 133 or 134 Years*. And'tisthe negleft of accounting for thefeodd Minutes in the Old Style above a thoufand Years backwards, that has made the Difference between the Old Style and the New to be at prefent Eleven Eays. Note, The Zodiack is fancy’d as a broad Belt fpreading about 5 or 6 Degrees on each Side of the Eclipticky fo wide as to con¬ tain mod of thofe Stars that make up the 12 Conftellations or Signs. Note, The inner Edge of the wooden Elo~ rizon is divided into 360 Degrees, or 12 times 30, allowing 30 Degrees to every Sign or Conft.ellation, the Figures of which are ufually drawn there. The next Circle to thefe on the Horizon contains an Almanack of the Old Style which begins the Year 11 Days later; and the next Circle is an Almanack of the New Style which begins fo much fooner • and thefe fhew in what Sign the Sun is, and in what * This was contrived to be done by Pope Gregory in the Year 1582 in this manner. Since three times 133 Years makes near 400 Years, he ordered the additional Day to be omitted at the end of three Centuries fucceffively, and to be retain’d at the 400th Year or 4th Century. But in this Reformation of the Calendar he look’d back no farther than the Council of Nice. This order almoft all Foreign Nations obferved: Great Britain did not obferve it: Therefore Great Britain ufes the Old Style or the Julian Account fo called from Julius C^far who regulated thefe Matters above 40 Years before Chriji: The other Nations ufe the New Style, which is called the Gregorian Account from Pope Gregory. Degree