A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)
Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 43
motion : and thatthe period of this epicyclical motion was eighteenyears and seven months. It struck him thatthis was precisely the period of the revolution ofthe nodes of the moons orbit. Of these resultshe gave a brief account to lord Macclesfield,then president of the Royal Society. ]\lr.Machin,… … S P Q a circle distant from it 23° 28, represent-ing the circle described by the pole of the equatorduring one revolution of the equinoctial points.Let P be the place of this last mentioned pole atsome given time. Round P describe a circle,A B C D, whose diameter A C is 18. The realsituation of the…
Encyclopedias and dictionaries · Aeronautics
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