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  1. 1
    A brief description of a new instrument, invented by Mr. Caleb Smith, for taking altitudes of the sun, moon, and stars, from the visible horizon; or any other angles at sea Whereby the interruption, and inconvenience, occasioned by the ship's motion, in observing with the quadrants commonly used, is remedied, and prevented. And the latitude found with great ease, accuracy, and expedition. With directions how to use it at Sea. Made and sold by George Adams, at Tycho Brahe's Head, near the Castle-Tavern in Fleetstreet, London; who makes, and sells, by wholesale and retale, and sorts of mathematical instruments, for land and sea, curiously and exactly finished in silver, brass, ivory, wood, &c. for the purposes of geometry, surveying, gauging, measuring, architecture, astronomy, geograghy, navigation, &c

    A brief description of a new instrument, invented by Mr. Caleb Smith, for taking altitudes of the sun, moon, and stars, from the visible horizon; or any other angles at sea Whereby... von Smith, Caleb fl. 1740

    Veröffentlicht 1732
    DE-824
    DE-12
    DE-70
    DE-155
    DE-384
    DE-473
    DE-19
    DE-355
    DE-703
    DE-29
    Volltext
    Elektronisch E-Book

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  2. 2
    The description, use, and excellency of a new instrument, or sea quadrant, invented by Caleb Smith, for taking altitudes of the sun, moon, and stars, from the visible horizon (as well as any other Angular Distances at Land or Sea) without impediment or Interruption from the ship's motion; whereby the Latitude at Sea May be obtained with greater Certainty, and more frequently, than by Davis's or any other of the Common Instruments. Tried, approved, and recommended by Capt. Christopher Middleton, Capt. George Spurrel, Capt. Joseph Harrison, and several other able and experienced Navigators. To which is added, An Essay to make this Quadrant serviceable at Sea, as well as at Land, when there is no Horizon to be seen. As also The Usefulness of its Application to an Aximuth Compass of a New Contrivance for discovering the Variation of the Magnetic Needle, at Sea, without any Astronomical Calculation

    The description, use, and excellency of a new instrument, or sea quadrant, invented by Caleb Smith, for taking altitudes of the sun, moon, and stars, from the visible horizon (as w... von Smith, Caleb fl. 1740

    Veröffentlicht 1740
    DE-824
    DE-12
    DE-70
    DE-155
    DE-384
    DE-473
    DE-19
    DE-355
    DE-703
    DE-29
    Volltext
    Elektronisch E-Book

    Zu den Favoriten
    Gespeichert in:

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