28 results filtered with: Leadbetter, Charles, active 1728
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Mechanick dialling; or, the new art of shadows, freed from the many obscurities, superfluities and errors of former writers upon this subject. The Whole laid down after so plain a Method that any Person (tho's a Stranger to the Art) With a Pair of Compasses and Common Ruler only, May make a Dial upon any Plane for any Place in the World, as well as those who have attained to the greatest Knowledge and Perfection in the Mathematics. Illustrated with many copper plates, And Examples of Dials for London, Exeter, Bristol, Worcester, Oxford, Cambridge, Norwich, Lincoln, Chester, Liverpool, York, Newcastle upon Tyne, Durham, Edinburgh, Dublin, &c. To which are added, 1. A Collection of above 300 Mottos in Latin and English. 2. A new and correct Alphabetical Table of the most eminent Cities and Towns in the World; shewing the Elevation of the Pole, and the Difference of their Meridians From London. 3. The best and most approved Methods of Painting Sun Dials. A Work not only useful for Artificers, but very entertaining for Gentlemen, and those Students at the Universities, that would understand Dialling, without the Fatigue of going through a Course of Mathematics. A new edition: not only very much improved by the Addition of the New Star-Dial, &c. but is the only Book upon the Subject that has been adapted to the New Stile. By Mr. Charles Leadbetter.
Leadbetter, Charles, active 1728.Date: 1769- Books
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Astronomy of the satellites of the Earth, Jupiter and Saturn: Grounded upon Sir Isaac Newton's Theory of the Earth's Satellite. The Theory explain'd, and made easy to the meanest Capacity, in calculating the true Place of the Moon: And freed from the Errors printed in the said Theory, by Dr. Gregory, Dr. Harris, and several other Authors for which now the Place of the Moon, and Eclipses of the Luminaries, are found to a very great Exactness. Also New Tables of the Motions of the Satellites of Jupiter and Saturn, (founded upon the Observations of Mr. Flamsteed, Mr. Cassini, Mr. Hugens, Dr. Halley and Mr. Pound,) from the Vernal Equinox: By which their Places and Positions, in respect of one another, may be exactly determined at any given Time. Adapted to the [illegible] of London. To which is added, A Problem to find the Latitude of the Place by the Altitude of the Sun, Moon, or Star, upon any Azimuth; being very useful for all Sea-Faring Men, as well as Gentlemen and others. By Charles Leadbetter, Teacher of the Mathematicks.
Leadbetter, Charles, active 1728.Date: M.DCC.XXIX. [1729]- Books
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A treatise of eclipses of the sun and moon for thirty-five years, commencing anno 1715, ending 1749 : containing the beginning, middle and ending, the digits eclipsed together, with the types of those that will be visible at London, with the general times of the solar eclipses, and the limits of the shade of the moon determined to which are added, the calculations of the times of the transits of Venus and Mercury over the sun, with the types thereof, for seventy-nine years and the conjunctions of Jupiter and Saturn, to the year 1821 / by Charles Leadbetter.
Leadbetter, Charles, active 1728.Date: 1731