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 TelegraphCollins & Brother, 1862 - 470 pages |
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acid air-pump angle aphelion apparatus appear ascer astronomers Astronomy atmosphere attraction axis axle ball barometer battery body called causes centre of gravity circle colors comet communicated concave 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 instrument Jupiter length lens lever Leyden jar liquid machine magnet means mechanical mercury metal miles minor planets mirror moon motion move object orbit particles pass pendulum perihelion perpendicular piston placed planets plate pole portion pounds pressure prime conductor principle produced properties proportion pulley quantity 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 weight wheel wire zinc
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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 ! Soul of surrounding worlds! in whom best seen Shines out thy Maker!
Page 345 - ... 430 feet; Mars a rather large pin's head, on a circle of 654 feet; Juno, Ceres, Vesta, and 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 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 173 - ... a vacant space in which none of the small particles of water ascend ; and in this, as well as around the outer edges of the waterspout, large drops of rain precipitate themselves.
Page x - Laws of Motion. Ivory Balls on Stand, for Collision. Set of eight illustrations for Centre of Gravity. Sliding Frame, for Composition of Forces. Apparatus for illustrating Central Forces. Mechanics. Complete set of Mechanicals, consisting of Pulleys ; Wheel and Axle; Capstan; Screw; Inclined Plane; Wedge. Hydrostatics. Bent Glass Tube, for Fluid Level. Mounted Spirit Level. Hydrometer and Jar, for Specific Gravity. Scales and Weights, for Specific Gravity. Hydrostatic Bellows, and Paradox. Hydraulics.
Page 352 - In the motion of the planets, the squares of the times of revolution are as the cubes of the mean distances from the sun.
Page 286 - The process usually adopted for obtaining galvanic electricity is, to place between two plates of different kinds of metal a fluid capable of exerting some chemical action on one of the plates, while it has no action, or a different action, on the other. A communication is then formed between the two plates.
Page 345 - To imitate the motions of the planets in the above-mentioned orbits, Mercury must describe its own diameter in 41 seconds; Venus in 4 minutes 14 seconds ; the Earth in 7 minutes ; Mars in 4 minutes 48 seconds ; Jupiter in 2 hours 56 minutes; Saturn in 3 hours 13 minutes; and Uranus in 2 hours 16 minutes.
Page 300 - The attractive power of a magnet is generally stated to be greatest at the poles ; but the actual poles, or points of greatest magnetic intensity, in a steel magnet, are not exactly at the ends, but a little within them.
Page 80 - ... time that the axle describes a small one, therefore the power is increased in the same proportion as the circumference of the wheel is greater than that of the axle. If the velocity of the wheel is...