16 results filtered with: Telescopes - Early works to 1800
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January 1773. Description of a new universal equatoreal, made by Mr. J. Ramsden, with the method of adjusting it for observation.
Ramsden, J. (Jesse), 1735-1800.Date: 1773]- Books
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Observatio satellitum Jovis per telescopium, ope machinulæ quæ et observatorem et telescopium portat in mari possibilis. Possibilisque in mari. Demonstrativa Illatio de Longitudine Meridianorum Ex observatione Eclipsium Satellitum Jovis. Exque observatione Stellae cujusdam fixae absque Pendulorum usu. Authore Joh. Petr. Biestero, M.D.
Biester, Johann Peter.Date: 1726- Books
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Two essays on the nature and wonderful properties of Island Crystal. Essay I. Containing, all that has been hitherto delivered in regard to its form, dimensions, and double refraction of light; with the addition of several new experiments with polished parallelopipeds and prisms made of this substance, which discover a various, multiple, and colorific refraction; and exhibit a variety of images of one and the same object. To which is subjoined, a computation of the magnifying power of reflecting telescopes; and a table thereof, from 6 inches to 12 feet in length. The whole illustrated with copper plate figures. By Benjamin Martin.
Martin, Benjamin, 1705-1782.Date: [1774?]- Books
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An essay on the genuine construction of a standard microscope and telescope: With the application of a prismatic or catadioptric eye-piece to refracting and reflecting telescopes, by which their lengths are much contracted, their fields of view encreased, and their uses greatly facilitated; particularly in the reflector of Cassegrain's form for celestial observations. By B. Martin.
Martin, Benjamin, 1705-1782.Date: MDCCLXXVI. [1776]- Books
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Description d'un nouvel instrument, appellé Equatorial universel, fait par M. J. Ramsden à Londres, avec la Manìcre de l'ajuster pour s'en servir. ...
Ramsden, J. (Jesse), 1735-1800.Date: 1773]- Books
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News for the curious : a treatise of telescopes, or, an account of the marvelous astronomical discoveries of late years made throughout Europe by the help of telescopes ... : also an abstract touching the distance, bulk, and orbs of the heavenly bodies... / done out of French by Jos. Walker.
Date: 1684- Books
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Directions for making the best composition for the metals of reflecting telescopes. Together with a description of the process for grinding, polishing, and giving the great speculum the true parabolic curve. By Mr. John Mudge. Read at the Royal Society, Feb 27. March 6. an 13. 1777.
Mudge, John, 1721-1793.Date: MDCCLXXVII. [1777]- Books
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On the power of penetrating into space by telescopes; with a comparative determination of the extent of that power in natural vision, and in telescopes of various sizes and constructions; illustrated by select observations. By William Herschel, LL.D. F.R.S. From the Philosophical transactions.
Herschel, William, Sir, 1738-1822.Date: 1800- Books
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Astronomy's advancement, or, News for the curious : being a treatise of telescopes, and an account of the marvelous astronomical discoveries of late years made throughout Europe : with the figures of the sun, moon, and planets, with Copernicus his system, in twelve copper plates : also, an abstract to ching the distance, faces, bulks, and orbs of the heavenly bodies, the best way of using instruments for satisfaction, &c. out of the best astronomers, ancient and modern, viz. Mr. Hook, Mr. Bouilleau, Mr. Hevelius, Father Kircher, &c. / done out of French by Jos. Walker.
Date: 1684- Books
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Observations of Miss Herschel's comet in August and September, 1786. By the Rev. Francis Wollaston, LL.B. F.R.S. Read at the Royal Society, Dec. 21, 1786.
Wollaston, Francis, 1731-1815.Date: MDCCLXXXVII. [1787]- Books
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Description of a new universal equatoreal, made by Ramsden, with the method of adjusting it for observation. As also instructions for making observations with it.
Ramsden, J. (Jesse), 1735-1800.Date: 1779]- Books
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Description and use of the improved reflecting and refracting telescopes, and scale for surveying, &c. By William Green, of Southmolton-Street, Hanover-Square.
Green, William, active 1778-1790.Date: MDCCLXXVIII. [1778]- Books
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Description of the two feet and half achromatic telescope, Made by P. and J. Dollond, in St. Paul's Church-Yard, London. The object-glass of this Telescope is composed of two glasses, one convex of crown glass, and the other concave of white slint glass; the diameter of the aperture is two inches. The plate represents the Telescope on its stand: AA is the wooden tube 2 1/2 feet long. The tube BB, that contains four eye-glasses, to be used for land-objects; and also the tube C, that contains two eye-glasses for astronomical purposes, are to be serewed into the end of the brass tube D. By turning the button a, this tube moves out of the wooden tube to adjust the eye-glasses to the proper distance from the object-glass, so as to render the object distinct. The magnifying power with the eye-glasses for land objects is near 50 times, and with those for astronomical uses it is 80 times. The stained glass b is applied to the eye-tube C to guard the eye in observing the spots on the sun. This glass must be taken off when the eye-tube is used for any other purposes. The vertical and horizontal motions are given to the Telescope by means of the joints at c and d. Description de la lunette Achromatique de Deux Pieds et Demi, Fait pair P. et J. Dollond, dans la Cimitiere de St. Paul a Londres.
P. and J. DollondDate: 1775?]- Books
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Investigation of the cause of that indistinctness of vision which has been ascribed to the smallness of the optic pencil. By William Herschel, LL.D. F.R.S. Read at the Royal Society, June 22, 1786.
Herschel, William, Sir, 1738-1822.Date: MDCCLXXXVI. [1786]- Books
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Description and use of the patent military and naval telescope, for measuring distances and the extension of objects at sight; by means of a new micrometrical adjustment. Dedicated BY Permission To His Royal Highness the Duke of York. Invented by C. Rand.
Rand, Cater.Date: [1799]- Books
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Description of the improved achromatic telescope, made with brass sliding tubes, by P. and J. Dollond, opticians, ...
P. and J. DollondDate: 1800?]