The use of a mathematical instrument, called a quadrant

The use of a mathematical instrument, called a quadrant Download PDF EPUB FB2

The use of the mathematical instrument, called a quadrant: with which plainly and easily to know the exact height and distance of any steeple, The the mistakes in the former are corrected.

Paperback – Author: W.P. The use of a mathematical instrument, called a quadrant: Shewing very plainly and easily to know the exact height or distance of any steeple, tree, or house, &c.

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. Mural quadrants were important astronomical instrument. The use of the mathematical instrument, called a quadrant: with which plainly and easily to know the exact height and distance of any steeple.

He added to the simple quadrant, optics, and a reflecting mirror to bring a body in the heavens into coincidence with the horizon, thereby turning the quadrant into a reflecting telescope.

At nearly the same time, in Philadelphia, Thomas Godfrey arrived at the same solution. This instrument, called a quadrant book octant, is the predecessor of out present-day sextant.

Instruments such as the astrolabe, the quadrant, and others were used to measure and accurately record the relative positions and movements of planets and other celestial objects.

The sextant and other related instruments were essential for navigation at sea. Most instruments are used within the field of geometry, including the ruler.

they are called quadrant 1st quadrant lies between x,y 2nd quadrant -x,y 3rd quadrant -x, -y 4th quadrant x, -y Asked in Math and Arithmetic, Algebra, Geometry. Contents.

It consists of a metal tin embossed on the front with a drawing of Balliol College and the words 'THE HELIX OXFORD SET OF MATHEMATICAL INSTRUMENTS COMPLETE & ACCURATE' in white against a blue background.

Inside the tin there are two set squares, a ° protractor, a 15 cm ruler, a metal compass, a 9 cm pencil, a pencil sharpener. A quadrant is an area with a clearly defined boundary (such as 1m2), which is usually marked by a physical object (eg.

a measuring tape or rulers). The use of a mathematical instrument, called a quadrant by W. [London]: The quadrants, nocturnals, and this book, are to be sold by Joseph Moxon, at his shop on Ludgate hill near Fleet-bridge, at the sign of Atlas in London, 2 Kindergarten to Grade 8 Mathematics Glossary acute triangle A triangle in which all three angles are acute.

Example add To combine two or more quantities to find one quantity called a total or a sum. addend Any of the numbers in a designated sum of two or more numbers (e.g., in 3 + 5 + 1 = 9, the numbers 3, 5, and 1 are addends). additionFile Size: KB.

The use of a mathematical instrument, called a quadrant by W. [London]: The quadrants, nocturnals, and this book, are printed and sold by Joseph Moxon, at his shop in Russel street at the sign of Atlas, Bib Name / Number:Wing (2nd ed.) / PE Copy from: Henry E.

Huntington Library and Art Gallery This instrument has been called by sailors "jackass quad- rant" and, supposedly from its shape, "hog-yoke." In early books on navi- gation it is called "sea-quadrant." The earlier form used by the observer standing back to the sun had a solid "shade vane" which slid along the smaller arc of the instrument.

A sighting vein runs along the top and a line with a weight, called a plumb line and plumb bob, respectively, hang from the corner.

To use a quadrant, the navigator looks through the sight vein, allows the plumb line to hang freely, and takes note of the line's position along the degree scale. Among the many talents of Peter Apian () was that of mathematical instrument maker.

It would seem natural that he would write about the instruments he made and how to use them. This “self-promotion” is expressed in his Quadrans Apiani astronomicusan instructional manual on the use of the quadrant. Simple applications involving use of. In this chapter we describe a wide range of practical mathematical instruments used in Oxford during the 16th and 17th centuries: these include sundials, astrolabes, quadrants, armillary spheres, nocturnals, and theodolites.

Among the mathematical practitioners and instrument-makers were Nicolas Kratzer, Edmund Gunter, Humphrey Cole, Elias Allen, and John : Willem Hackmann.

This instrument has been called by sailors “jackass quadrant” and, supposedly from its shape, “hog-yoke.” In early books on navigation it is called “sea-quadrant.” The earlier form used by the observer standing back to the sun had a solid “shade vane” which slid along the smaller arc of the instrument.

An astronomical instrument for measuring angles with a quarter circle graduated arc. The seaman's quadrant, or simple quadrant, was the earliest instrument used by navigators for measuring the altitude of a heavenly body.

Other instruments not strictly quadrants have also been called such. The backstaff may be called Davis Quadrant. The first mention of an instrument called a Theodolite was in by Leonard Digges in his book "Pantometria" in which he describes an instrument called a "Theodolitus” In principal the instrument had a graduated horizontal circle mounted on a vertical column to which was fixed a graduated vertical Size: 1MB.

The book begins with a preface giving definitions of mathematical terms, followed by eight separate books: BOOK I: Of the Construction and Use of Mathematical Instruments; containing the common Instruments, as Compasses, the Ruler, the Drawing-Pen, the Porte-Craion or Pencil-Holder, the Square, and the Protractor Chapter I: The Ruler, the Drawing Pen, and the Porte.

The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation. It is a type of reflecting instrument. The quadrant was the earliest astronomical instrument converted for nautical use.Instruments used in mathematics and geometry - thesaurus.

Related words. compasses noun. a piece of equipment used for drawing circles, consisting of two thin parts joined in the shape of the letter V. dividers.The sector, also known as a proportional compass or military compass, was a major calculating instrument in use from the end of the sixteenth century until the nineteenth century.

It is an instrument consisting of two rulers of equal length joined by a hinge. A number of scales are inscribed upon the instrument which facilitate various mathematical calculations.

It was used .