A School Compendium of Natural and Experimental Philosophy: Embracing the Elementary Principles of Mechanics, Hydrostatics, Hydraulics, Pneumatics, Acoustics, Pyronomics, Optics, Electricity, Galvanism, Magnetism, Electro-magnetism, Magneto-electricity, and Astronomy. Containing Also a Description of the Steam and Locomotive Engines, and of the Electro-magnetic TelegraphA. S. Barnes & Burr, 1859 - 470 pages |
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acid air-pump angle aphelion apparatus appear ascer atmosphere attraction axis axle ball barometer battery called causes centre of gravity circle colors comet communicated concave mirror condensed constructed convex convex lens copper cylinder degree diameter direction distance earth eclipse effect elastic electricity equal Explain Fig fall feet fluid focus force friction fulcrum galvanic glass heat hydrometer inches inclined plane Jupiter length lens lever Leyden jar light liquid machine magnet means mechanical mercury metal miles minor planets moon motion move namely object orbit particles pass pendulum perihelion perpendicular piston placed planets plate pole portion pounds pressure prime conductor principle produced properties proportion pulley quantity rays reflected refracted represents retina revolve rise screw seen side space specific gravity stars steam substances surface telegraph telescope tion tricity tube Uranus valve vapor velocity vessel vibrations voltaic pile weight wheel wire zinc
Popular passages
Page 345 - Pallas, grains of sand, in orbits of from 1000 to 1200 feet; Jupiter a moderate-sized orange, in a circle nearly half a mile across; Saturn a small orange, on a circle of four-fifths of a mile...
Page 258 - Prime cheerer Light ! Of all material beings first, and best ! Efflux divine! Nature's resplendent robe! Without whose vesting beauty all were wrapt In unessential gloom; and thou, O Sun!
Page 102 - ... wheel is allowed to pass. Now, if this wheel has sixty teeth, as is common, it will just turn round once for sixty beats of the pendulum, or seconds; and a hand fixed on its axis, projecting through the dial-plate, will be the second hand of the clock.
Page 200 - It can engrave a seal, and crush masses of obdurate metal like wax before it, — draw out, without breaking, a thread as fine as gossamer, and lift a ship of war like a bauble in the air. It can embroider muslin, and forge anchors, — cut steel into ribands, and impel loaded vessels against the fury of the winds and waves.
Page 345 - Venus, a pea on a circle 284 feet in diameter ; the Earth also a pea, on a circle of 430 feet ; Mars, a rather large pin's head, on a circle of 654 feet...
Page 46 - B it receives in return a blow equal to that which it gave, but in a contrary direction, and its motion is thereby stopped, or, rather. given to B. Therefore, when a body strikes against another. the quantity of motion communicated to the second body is lost by the first; but...
Page 318 - ... strands of copper bell-wire, covered with cotton threads, each thirty-one feet long; about eighteen inches of the ends are left projecting, so that only, twenty-eight feet of each actually surround the iron. The aggregate length of the coils is therefore 728 feet. Each strand is wound on a little less than an inch : in the middle of the horse-shoe it forms three thicknesses of wire ; and on the ends, or near the poles, it is wound so as to form six thicknesses.
Page 329 - Levi Woodbury, then Secretary of the Treasury, issued a circular requesting information in regard to the propriety of establishing a system of telegraphs for the United States, to which Professor Morse replied, giving an account of his invention, its proposed advantages and probable expense.
Page 70 - Draw not nigh hither ; put off thy shoes from off thy feet ; for the place where thou standest is holy ground.
Page 91 - Roads which are not level may be regarded as inclined planes, and loads drawn upon them in carriages, considered in reference to the powers which impel them, are subject to all the conditions which have been established for inclined planes. The inclination of the road is estimated by the height corresponding to some proposed length. Thus...