leonard digges (13 Ergebnisse)

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: Like New. Used - Like New. Book is new and unread but may have minor shelf wear. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

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Softcover. Zustand: Good. paperback in jacket, bookplate on reverse of cover, edge foxed, front cover set a little forward, no problem with text pages.

Gebunden. Zustand: New.

Zustand: Like New. Used - Like New. Book is new and unread but may have minor shelf wear. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.

Soft Cover. Zustand: Good. 12mo. xx, 60 pp. some light uniform browning, minor sporadic foxing to gutters, small ink ownership inscription on blank front endpaper, very good in original card wraps with original glazine over lay, chipped with loss bottom spine and front cover, some browning to cover, good. Old Ashmolean Reprints IV. Introduction by Robert Gunther. Size: 12mo - over 6¾" - 7¾" tall.

Hardcover. Zustand: Fine. 2nd Edition. Folio. pp. [viii], 152, 151-195, [iii]. [A] B-2C . Roman, Italic and Black letter. Decorative woodcut initials and head- and tail-pieces throughout. Fine woodcut mathematical and topographical diagrams and illustrations, including to t-p, depicting the use of geometrical instruments and the process of land-surveying. Large woodcut arms of Sir Nicholas Bacon (the dedicatee, father of Sir Francis Bacon) to verso of t-p, unidentified arms to verso of Cc3, book-labels of Erwin Tomash and Harrison D. Horblit on pastedown. A particularly fine copy, absolutely crisp and clean, with good margins (some deckle edges), in contemporary limp vellum, remains of ties. Second and best edition of Thomas Digges' fundamental mathematical work, revised and expanded from the edition of 1571, and the first description of many important theories and techniques in English. Digges (1546-1595) was the son of the mathematician and surveyor Leonard Digges (1520-1559), inventor of the theodolite and perhaps also of the telescope. Thomas produced revised or augmented editions of several of his father's works. "This edition is essentially identical to the first with two significant additions by Thomas Digges: the Mathematicall discourse of the five Platonicall solides and the first treatment of the science of ballistics in English. Also added to Book I is a short chapter (three leaves) on surveying in mines. Leonard Digges published a small book on practical surveying in 1556, but this more ambitious work was still in manuscript when he died. Thomas, his son, further extended the work and had it published. The early material is essentially that to be found in the works of such authors as Gemma Frisius and Peter Apian (quadrants, astrolabes with shadow scales, etc.). However this book, and his earlier work Tectonicon, are the first descriptions of the application of these instruments written in English. All of the early instruments rely on the use of right-angle triangles in establishing a survey. Digges deals with a different type of survey instrument in a later part of this volume. This is the first description and illustration of the theodolitethe name being coined by Digges in this work. This device consisted of a table with an angle- sighting device mounted above it. . Another intriguing feature of this work is that Digges, in Chapter 21 of the first book, discusses the use of various optical devices and claims that: "ye may by applycation of glasses in due proportion cause any peculiare house, or roume thereof dilate and shew it selfe in as ample fourme as the whole towne firste appeared, so that ye shall descerne any trifle, or read any letter lying there open" Digges senior had obviously been experimenting with a magnifying lens, and it seems very likely that he invented the telescope about a half-century before it was unambiguously described in Holland in 1608. The first book, titled Longimetra, is a treatise on surveying using the quadrant, square and theodolite. The subsequent books, Planimetra and Stereometra, cover plane and solid geometry and their use in the calculation of area and volumeparticularly gauging." Tomash & Williams The Pantometria provides a complete course in practical geometry, from the fundamentals ("A Line is a length without breadth or thicknesse") to the most complex theorems. The work concludes with the first appearance of Digges' work on ballistics, a new addition to the present edition. "He was able, on the basis of his own and his father's experiments, to disprove many commonly held erroneous ideas in ballistics but was not able to develop a mathematical theory of his own. These appendixes constitute the first serious ballistics studies in England" (DSB). A very fine copy of this most important work. ESTC S107357. STC 6859; Cockle 16. Spaulding and Karpinski 49. DSB IV, 97 (attributing the Pantometria to Leonard Digges). Tomash & Williams D54 [This copy]. The Geometry of War 45.

Hardcover. Zustand: Very Good. London, 1605, 12mo[ 182 x 128mm], Contemp. calf, 2], 26 leaves. Two folding tables. Numerous woodcut illustrations in text. A rare edition of an important practical work on mensuration by Leonard Digges, an expert mathematician whose chief interest was in the application of that science to astronomy,surveying, military engineering, architecture, and scientific instruments. Digges was part of the scientific circle of John Dee. It Is difficult to establish Digges'SScientific Productions precisely because it was mostly published by his son, Thomas Digges, with his own work mixed in. However, Tectonicon, 1556, a surveying manual emphasizing practical mathematics, was all his. Leonard Digges participated in Wyatt's rebellion against Mary. The rebellion was as much against Spanish interference as against Catholicism. He was attainted for treason as a result ofWyatt's rebellion, lost his estate, and in the last years of his life apparently tried to support himself partly through publication. In Pantometria, Thomas Digges described his father's skill in optics. Digges' Prognostication, first published in 1553, apparently to earn money after he lost his estate, and then reprinted frequently until 1605, was an almanac with, among other things, astronomical information, for example on how to determine the hour at night from the stars, and information about instruments for observation. Provenance: Harrison Horblit.

First edition. ?the first serious ballistic studies in England? (DSB). Second and best edition of this important Elizabethan work on practical geometry, in which ?for the first time, we have indications of an instrument which we may call a reflecting telescope? (King,?The History of the Telescope, p. 29). This second edition contains several appendices by Thomas Digges, not present in the first edition, which constitute ?the first serious ballistic studies in England? (DSB). The book also contains the first description and illustration of the theodolite. The first edition is an extremely rare book ? no copy has sold at auction since the Kenney copy in 1966 (and that copy was defective). ?This edition is essentially identical to the first with two significant additions by Thomas Digges: the ?Mathematicall discourse of the five Platonicall solid? and the first treatment of the science of ballistics in English. Also added to Book I is a short chapter (three leaves) on surveying in mines ? The early material is essentially that to be found in the works of such authors as Gemma Frisius and Peter Apian (quadrants, astrolabes with shadow scales, etc.). However, this book, and his earlier work Tectonicon, are the first descriptions of the application of these instruments written in English. All of the early instruments rely on the use of right-angle triangles in establishing a survey. Digges deals with a different type of survey instrument in a later part of this volume. This is the first description and illustration of the theodolite ? the name being coined by Digges in this work. This device consisted of a table with an angle-sighting device mounted above it ? Another intriguing feature of this work is that Digges, in Chapter 21 of the first book, discusses the use of various optical devices and claims that: ?ye may by applycation of glasses in due proportion cause any peculiare house, or roume thereof dilate and shew it selfe in as ample fourme as the whole towne firste appeared, so that ye shall descerne any trifle, or read any letter lying there open.? Digges senior had obviously been experimenting with a magnifying lens, and it seems very likely that he invented the telescope about a half-century before it was unambiguously described in Holland in 1608. The first book, titled ?Longimetra,? is a treatise on surveying using the quadrant, square and theodolite. The subsequent books, ?Planimetra? and ?Stereometra?, cover plane and solid geometry and their use in the calculation of area and volume?particularly gauging? (Tomash & Williams). Leonard Digges (ca. 1520-ca.1559) refers to a work on practical surveying in A Prognostication Everlasting (1556), but it remained unpublished at his death. His son Thomas (ca.1545-1595) edited the work and added substantial new material of his own (see below) and had it published in 1571. Pantometria deals with the reckoning of distances, areas and volumes, and with instrumental and computational techniques for surveying and mensuration, justified in terms of civic and military utility and of pleasure. His account of quadrants, astrolabes with shadow scales, etc, was influenced by Peter Apian and Gemma Frisius, but his are the first descriptions of the use of these instruments written in English. Digges also describes three new instruments?that could be combined to form what he called a ?topographicall instrument? These were a vertical quadrant with shadow square that was?intended to measure heights; a square with inscribed quadrant and alidade, mounted on a staff; and a circular plate divided into degrees with a centrally mounted alidade, to which Digges gave the name ?theodelitus? Leonard Digges was a close friend of John Dee, whose private library contained many texts by Roger Bacon. It was probably during visits to Dee?s house that Leonard came across Bacon's references to lenses and the ability to use them to ?cause the sun, moon and stars in appearance to descend here below.? Stimulated by Bacon?s work, and perhaps by other texts in Dee?s library, Leonard set out to determine the principles of refracting and reflecting telescopes and, almost certainly, to actually construct a reflector. Leonard?s achievements are praised by Thomas in the preface to the present work: ?my father by his continual painful practices, assisted with demonstrations Mathematical, was able, and sundry times hath by proportional Glasses duly situate in convenient angles, not only discovered things far off, read letters, numbered pieces of money with the very coin and superscription thereof, cast by some of his friends of purpose upon downs in open fields, but also seven miles off declared what hath been done at that instant in private places.? But the crucial passage reads: ?Thus much I though good to open concerning the effects of a plaine Glasse, very pleasant to practise, yea most exactly serving for the description of a plaine champion country. But marveilous are the conclusions that may be performed by Glasses concave and convex of Circulare and parabolicall formes, using for multiplication of beames sometime the aide of Glasses transparent, which by fraction [refraction] should unite or dissipate the images or figures presented by the reflection of the other. By these kinde of Glasses or rather frames of them, placed in due Angles, yee may not only set out before your eye the littely image of every Towne, Village, etc. and that in as little or great space or place as ye will prescribe, but also augment and dilate any parcell thereof, so that whereas at the first appearance an whole Towne shall present it selfe so small and compact together that ye shall not discerne any difference of streates, ye may by application of Glasses in due proportion cause any peculiare house, or roume thereof dilate and shew it selfe in as ample forme as the whole towne first appeared, so that ye shall discerne any trifle, or read any letter there lying open, especially if the sunne beames come unto it, as plai.