A Complete System of Land-Surveying; Both in Theory and Practice, Containing the Best, the Most Accurate, and Commodious Methods of Surveying and PL
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1771 edition. Excerpt: ... Arch 1CB is lefs the required Side B C is proved to be not ambiguous. CASE V. Given the Angles A and B, with the oppoftte Side AC the fame as before in the loft Cafe; to find the included Side AB. (Fie. 40, 41.) I. By ftereographic Projection. Projeft the Triangle by Cafe 4; fo will 4B meafured, = 72 28'.. 2. Logarithmically. By Cafe i of right-angled Triangles, Radius: Cof.. 29 31':: Tan. AC 41: Tan. CASE XII. j t Ghenalltbe 3 Angles, -viz. A = 29 31', B = 30 33', and C = 132 22'; to find a Side AC. (Fio. 40,41.) r. By ftereographic Projection. The Angles being converted into Sides, project the Triangle, as by the laft Cafe; fo will AC meafured, As A, B arc of the fame Affection, the Perp. falte within the Triangle, otherwife without. BOOK VI. A S T R O N O M t. A Stronbmy hath its Derivation from the two Greek JL. Words After, a Star, arid Nomos, a Law; for by it we are taught the Motions? the Sun, Mbdn nd Stars, and whatever in any wife pertains to them.; 2. Before we proceed to perform Conthafiottt iif Aftronomy, it is requifite to know the Saw's Place in the Ecliptic, the Latitude of the Place/ and thd'Sun'ii greateft Declination, that Is, theiAngla that th$ Sun's Orbit (the Ecliptic) rndkes with-' the Ecjforhoftial. 3. The Sun's Place in the Ecliptic is w be okh'raed from aftronomical Tables, which I have here inferted; whofe Ufes are evident fronv th'd Examples in ProB. i. 4 The Header muft not expeft, thai! this fliall be a full and complete Courfe of Aftponie, but only' a CollecYion of the moft ufeful agronomical Problems, necefTary to be known by every Pigffon1, who vrould defervedly acquire the Name arid Character of an able Surveyor. SECT SECT. L Astronomical Problems, requifite to be known In fie Practice of Pros. I...1.
- Paperback | 70 pages
- 189 x 246 x 4mm | 141g
- 05 May 2014
- Miami Fl, United States
- Illustrations, black and white