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abutment angle angle of repose applied Article axes bars beam centre of gravity centre of pressure centre of resistance co-efficient co-ordinates component conjugate pressure cord couple cross section curvature curve denote depth diagonal diameter direction distance elasticity ellipse equal and opposite equation equilibrium extrados figure flexure fluid formula frame friction girder given greatest horizontal hydrostatic arch inclination intensity joint lattice girder length line of action linear arch lines of resistance masonry moment of inertia neutral axis normal oblique pair parabola parallel forces parallel projection perpendicular plane of section polygon position principal stresses principles prism proportional radius radius of curvature ratio rectangular represent respectively resultant secondary truss shearing stress spandril specific gravity stability straight line strain strength structure struts supporting forces surface tangent tenacity tension Theorem thickness thrust tion tlie traversing uniform vertical pressure volume wall weight wrought iron
الصفحة 654 - Sidereal Heavens, And other Subjects connected with Astronomy, as illustrative of the Character of the Deity, and of an Infinity of Worlds With Engravings.
الصفحة 4 - The science of Politics bears in one respect a close analogy to the science of Mechanics. The mathematician can easily demonstrate that a certain power, applied by means of a certain lever or of a certain system of pulleys, will suffice to raise a certain weight. But his demonstration proceeds on the supposition that the machinery is such as no load will bend or break. If the engineer, who has* to lift a great mass of real granite by the instrumentality of real timber and real hemp, should absolutely...
الصفحة 8 - Mechanical knowledge may obviously be distinguished into three kinds : purely scientific knowledge, — purely practical knowledge — and that intermediate knowledge which relates to the application of scientific principles to practical purposes, and which arises from understanding the harmony of theory and practice. The objects of instruction in purely scientific mechanics and physics are, first, to produce in the student that improvement of the understanding which results from the cultivation...
الصفحة 480 - The Mass, or Inertia, of a body, is a quantity proportional to the unbalanced force which is required in order to produce a given definite change in the motion of the body in a given interval of time.
الصفحة 649 - A LEGACY to PARSONS ; Or, Have the Clergy of the Established Church an Equitable Right to Tithes and Church Property ? Fcap. 8vo. Cloth, 1/6. New Edition. " The most powerful work of the greatest master of political controversy this country has ever produced."— Pall Mall Gazette.
الصفحة 591 - W, cos ft = 0, and tO^ being equal to the weight of a column of fluid whose base is the sectional area of the jet, and its height double of the height due to the velocity.
الصفحة 21 - ... 26. Force of a Couple — Ann or Leverage. — The force of a COUple is the common magnitude of the two equal forces ; the arm or leverage of a couple is the perpendicular distance between the lines of action of the two equal forces.
الصفحة 650 - EARTH DELINEATED WITH PEN AND PENCIL (The) : an Illustrated Record of Voyages, Travels, and Adventures all round the World. Illustrated with more than Two Hundred Engravings in the first style of Art, by the most eminent Artists, including several from the master pencil of GUSTAVE DORE.
الصفحة 5 - ... which he finds in treatises on dynamics, and should make no allowance for the imperfection of his materials, his whole apparatus of beams, wheels, and ropes would soon come down in ruin, and, with all his geometrical skill, he Would be found a far inferior builder to those painted barbarians who, though they never heard of the parallelogram of forces, managed to pile up Stonehenge.