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3 edition of The description and use of that necessary instrument call"d, Gunter"s quadrant found in the catalog.

The description and use of that necessary instrument call"d, Gunter"s quadrant

Geo Gargrave

The description and use of that necessary instrument call"d, Gunter"s quadrant

... To which is added, A table of the sun"s place and declination for every day in the year; also the time of the Sun"s rising and setting, calculated for the latitude of Leeds, ...

by Geo Gargrave

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  • 6 Currently reading

Published by printed by J. Lister in Leeds .
Written in English


The Physical Object
FormatMicroform
Pagination24,[8]p.
Number of Pages24
ID Numbers
Open LibraryOL22339175M

The description and use of the carpenters-rule: together with The use of the line of numbers commonly called Gunters-line: applyed to the measuring of all superficies and solids, as board, glass, plaistering, wainscoat, tyling, paving, flooring, &c., timber, stone, square on round, gauging of vessels, &c.: also military orders, simple and. Images as instruments. Images of stereographic projections can also deepen our understanding of the use of instruments in a more general way: the common distinction made between books and instruments, and the ownership of both, doesn't hold when we examine such texts as John Collins' book The Sector on a Quadrant.

The history of navigation is the history of seamanship, the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. A few people have excelled as seafarers, prominent among them the Austronesians (Islander Southeast Asians, Malagasy, Islander .   To use a sextant to find the angle of elevation of an object, you’ll need to know your elevation above sea level. Sight the horizon by looking through the horizon mirror, then move the sextant’s index arm until the object you’re trying to find is also visible on the horizon. Clamp the index arm in place with the flip-lock, then turn the micrometer knob to fine-tune the sextant 93%(14).

To identify a parcel, simply subdivide the section into quarters. The last quarter mentioned in the legal description is the larger section and the first one mentioned is the smallest. This is the reason the legal description NW 1/4 NE 1/4 SW 1/4 SE 1/4 is read the NW one quarter of the NE one quarter of the SW one quarter of the SE one quarter. Full text of "A Treatise on Gunter's Scale, and the Sliding Rule: Together with a Description and Use of the See other formats.


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The description and use of that necessary instrument call"d, Gunter"s quadrant by Geo Gargrave Download PDF EPUB FB2

The description and use of that necessary instrument call'd, Gunter's quadrant ; To which is added, A table of the sun's place and declination for every day in the year ; also the time of the Sun's rising and setting, calculated for the latitude of Leeds (not yet rated) 0 with reviews.

The description and use of that necessary instrument call'd, Gunter's quadrant: Whereby many propositions in Astronomy, &c. are very easily perform'd. Such as the sun's altitude at any time ; his right ascenfion and declination ; his longitude or place in tho ecliptic ; his amplitude and azimuth ; his rising and setting ; the hour of the day or night, and other conclusions exemplify'd.

Gunter's quadrant is an instrument made of wood, brass or other substance, containing a kind of stereographic projection of the sphere on the plane of the equinoctial, the eye being supposed to be placed in one of the poles, so that the tropic, ecliptic, and horizon form the arcs of circles, but the hour circles are other curves, drawn by means of several altitudes of the sun for some.

The description and use of a portable instrument, vlugarly [sic] known by the name of Gunters quadrant: by which is perform'd most propositions in astronomy, as the altitude, azimuth, right ascention, and declination of the sun, &c.: also his rising, and setting and amplitude, together with the hour of the day or night, and other conclusions exemplified at large: to which is added.

The description and use of a portable instrument, vlugarly [sic] known by the name of Gunters quadrant: by which is perform'd most propositions in astronomy, as the altitude, azimuth, right ascention, and declination of the sun, &c.: also his rising, and setting and amplitude, together with the hour of the day or night, and other condusions exemplified at large: to which is added.

Gunter published his description in in Description and Use of the Sector, the Crosse-staffe and other Instruments. It is worth noting that in this work Gunter uses the contractions sin for sine and tan for tangent in his drawing of his scale although not in the text of the book.

Charles Cotter writes in:. A quadrant is an instrument that is used to measure angles up to 90°. Different versions of this instrument could be used to calculate various readings, such as longitude, latitude, and time of day. It was originally proposed by Ptolemy as a better kind of astrolabe.

Several different variations of the instrument were later produced by medieval Muslim astronomers. Gunter, Edmund. Works: containing the description and use of the sector, cross-staff, bow quadrant, and other instruments / [with] the description and use of another sector and quadrant invented by Sam Foster London.

The works of Edmund Gunter: containing the description and use of the sector, cross-staff, bow, quadrant, and other instruments. With a canon of artificial sines and tangents to a radius of 10, parts, and the logarithms from an unite to and some questions in navigation added by Mr.

Henry Bond. 16 R. Delamain, The Making, Description, and Use of a small portable Instrument called a Horizontall Quadrant, etc., London, 17 Oughtred s description of his circular slide rule of and his rectilinear slide rule ofas well as a drawing of the circular slide rule, are reproduced in Cajori s History of the Slide Rule.

Elements of Surveying and Navigation With a Description of the Instruments and the Necessary Tables [Charles Davies] on *FREE* shipping on qualifying offers. The quadrant (see also the illustration in Lecture 7) derives from the astrolabe, "which Gunter folded into four parts and compressed so that they would fit on a quarter circle." [ from Williams, op.

cit.].Although Gunter was not the inventor of the quadrant, he contributed a crucial improvement: for the first time, some of the scales engraved on the instrument are. c) It is necessary to hold the inoculating instrument in the Bunsen burner flame until it becomes red hot. d) All of the above Once you have sterilized your inoculating loop, it is important that you wait seconds before using the loop to pick up a sample from your culture.

A Gunter's quadrant is an invention dating back to Edmund Gunter invented this quadrant to determine time. Tycho Brahe, a Danish astronomer, built 2 meter radius quadrants in the s on the isle of Hven at his astronomy observatory. This article provides a brief history of navigational instruments.

The illustration above comes from a book entitled "The Seaman's Secrets" written by the English explorer John Davis (), published in London in by Thomas Dawson.

Such cards were often decorated with ornate symbols, like the fleur-de-lys you can see at the top of the card.

Gunter's Quadrant, an instrument made of wood, brass, or other substance, containing a kind of stereographic projection of the sphere on the plane of the equinoxial, the eye being supposed to be placed in one of the poles, so that the tropic, ecliptic, and horizon form the arcs of circles, but the hour circles are other curves, drawn by means of several altitudes of the sun for some.

The Gunter-type quadrant Edmund Gunter's De Sectore et Radio () describes this (Images 1 & 2) type of quadrant, a form that was extremely popular throughout the 17th century. The quadrant could be used to observe and measure astronomical phenomena, to perform the basic tasks of surveying, and to carry out astronomical calculations.

The vvorks of Edmund Gunter: containing the description and use of the sector, cross-staff, bow, quadrant, and other instruments. With a canon of artificial sines and tangents to a radius of parts, and the logarithms from an unite to the uses whereof are illustrated in the practice of arithmetick, geometry, astronomy, navigation, dialling, and fortification.

Gunter's admirable rule of proportion, now called the line of numbers (‘Gunter's Line’ and ‘Gunter's Proportion’), and other lines laid down by it were fitted in the scale, which ever since has been called ‘Gunter's Scale.’ A description was given in his ‘Book of the Sector,’ and a more popular account of his ‘Line of.

Edmund Gunter (–). The Workes of Edmund Gunter, Containing the Description of the Sector, Cross-staff, and Other Instruments; with a Canon of Artificial Sines & Tangent, &c. Much Enlarged by the Author. Together with a New Treatise of Fortification.

Whereunto Is Now Added the Further Use of the Quadrant Fitted for Daily Practice. By Sam. HISTORY OF THE LOGARITHMIC SLIDE RULE THEINVENTION OF LOGARITHMS AND OF THE called "Gunter's scale" (see Fig. 1), by means of whichas well as in his Description and Use of the Sector, Cross-Staff and other Instruments, London, GUNTER'SSCALEANDTHESLIDE RULEOFTEN CONFOUNDEDFile Size: 4MB.Edmund Gunter invented the cross bow quadrant, also called the mariner's bow, around It gets its name from the similarity to the archer's crossbow.

This instrument is interesting in that the arc is ° but is only graduated as a 90° arc. As such, the angular spacing of a degree on the arc is slightly greater than one degree. Gunter’s Quadrant, an instrument made of wood, brass or other substance, containing a kind of stereographic projection of the sphere on the plane of the equinoctial, the eye being supposed to be placed in one of the poles, so that the tropic, ecliptic, and horizon form the arcs of circles, but the hour circles are other curves, drawn by means of several altitudes of .