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RUMFORD, GRAFEN von (BENJAMIN THOMPSON). - THE ECONOMY OF HEATBiblio.com

TINSEAU (D'AMONDANS, CHARLES de). - GENERALIZATION OF THE PYTHAGOREAN THEOREMBiblio.com

Solution de quelques Problêmes relatifs à la Théorie des Surfaces courbes & des Courbes à double courbure. Présenté en 1774.

178044931Paris Moutard Panckoucke 1780. 4to. Extract from "Mémoires fe Mathematique et de Physique Présentés à l'Academie des Sciences par divers Savans" Tome IX. Pp. 593-624 and 2 folded engraved plates. Clean and fine. <br/><br/><em>First appearance of an importent papwer in the history of analytic geometry."In this article Tinseau gave an interesting generalization of the Pythagorean theorem for space of three dimensions: the square of the area of a plane surface is equal to the sum of the squares of the projection of this surface upon three mutually perpendicular coordinate planes.To Tinseau it appears that the use of the word "conoid" in the modern sense is due."Boyer "History of Analytic Geometry p. 207."Two of the three memoirs that constitute Tinseau’s oeuvre deal with topics in the theory of surfaces and curves of double curvature: planes tangent to a surface contact curves of circumscribed cones or cylinders various surfaces attached to a space curve the determination of the osculatory plane at a point of a space curve problems of quadrature and cubature involving ruled surfaces the study of the properties of certain special ruled surfaces particularly conoids and various results in the analytic geometry of space. In these two papers the equation of the tangent plane at a point of a surface was first worked out in detail the equation had been known since Parent methods of descriptive geometry were used in determining the perpendicular common to two straight lines in space and the Pythagorean theorem was generalized to space the square of a plane area is equal to the sum of the squares of the projections of this area on mutually perpendicular planes. DSB. Although Tinseau published very little his papers are of great interest as additions to Monge’s earliest works. Indeed Tinseau appears to have been Monge’s first disciple. </em> unknown

Herman H. J. Lynge & Søn A/S · Danemark1 250,00 DKK≈ 167,88 €

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Description d'un Instrument propre à measurer le volume des corps sans les plonger dans aucun liquide.

Mémoire sur L'Analyse des Eaux de Selters ou de Seltz. Première - Seconde Partie. 2 Mai 1750.

Expedition of Humphry Clinker. Second Edition Vol. 1

The Trial of Sir Archibald Gordon Kinloch of Gilmerton Bart. For The Murder of Sir Francis Kinloch Bart His Brother - German . Before the High Court of Justiciary on Monday June 29.1795.

A Treatise on the Influence of the Moon in Fevers

The blessings of peace : a sermon preached in Christ's Church New-York on the Fourth of July 1794. At the joint request of the Tammany Society or Columbian Order and the Society of Mechanics

Perpetual Laws of the Commonwealth of Massachusetts Acts passed the General Court William Frost's copy

The Satyrical Works of Titus Petronius Arbiter in Prose and Verse in Three Parts

Solution de quelques Problêmes relatifs à la Théorie des Surfaces courbes, & des Courbes à double courbure. (Présenté en 1774).

Solution de quelques Problêmes relatifs à la Théorie des Surfaces courbes & des Courbes à double courbure. Présenté en 1774.

A Sermon Preached at the Ordination of the Rev. Mr. Thomas Cary To the Pastoral Care of the First Church in Newbury-Port May 11 1768

THE YOUNG CLERK'S MAGAZINE: OR ENGLISH LAW REPOSITORY: CONTAINING A VARIETY OF THE MOST USEFUL PRECEDENTS OF ARTICLES OF AGREEMENT BONDS BILLS RECOGNIZANCES RELEASES LETTERS AND WARRANTS OF ATTORNEY.TO WHICH IS ADDED THE DOCTRINE OF FINES AND RECOVERIES AND THEIR FORMS.

The Town Talk the Fish Pool the Plebeian the Old Whig the Spinster etc. Now First Collected with Notes and Illustrations

Observations on the More Ancient Statutes from Magna Charta to the Twenty-First of James I. Cap. XXVII. With an Appendix Being a Proposal for New Modelling the Statutes

Das Kleine Davidische Psalterspiel der Kinder Zions

Histoire du siècle d'Alexandre avec quelques reflexions sur ceux qui l'ont précédé.

Life & Exploits of the ingenious gentleman Don Quixote DE La Mancha The Foourth Edition 1766 Volume the First

Apologie de la Religion Chrétienne → Defense of the Christian Religion Contre l'Auteur du Christianisme dévoilé & contre quelques autres critiques. → Against the author of 'Christianity Unveiledand against several other critics

C. Plinii Cæcilii Secundi Epistolæ et Panegyricus ub. textus accurate est recensitus et observationibus . ad modum J. Minellii subjectis illustratus etc. Edited by M.J.F.W. i.e. Johann Friedrich Weinrich.

Epistolae et Panegyricus; Cum variis Lectionibus & Annotationibus

REPORT OF THE COMMITTEE TO WHOM WAS REFERRED THE MOTION OF THE SEVENTEENTH JANUARY LAST RESPECTING THE TERRITORY OF THE UNITED STATES SOUTHWARD AND WESTWARD OF THE STATE OF GEORGIA

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