The Entertaining Philosopher: A Familiar Explanation of the Most Interesting Phenomena of Natural and Experimental Philosophy : Comprising a Store of Curious and Instructive Information in Mechanics, Hydrostatics, Pneumatics, Heat, Optics, Magnetism, Electricity, Galvanism, EtcH.G. Bohn, 1844 - 488 من الصفحات |
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acid action agent angle aperture appear arrangement ascer atmosphere attraction ball body boiling brass called cause centre of gravity charge chemical coating colour communication concave conducting power conductor construction containing copper cylinder degree density diameter direction distance earth effect elastic elec electrified electrometer electroscope equal equilibrium evident excited expansion experiments fact fall fixed fluid force friction gases glass greater Gregorian telescope heat inch increase influence instance instrument intensity iron latent heat lens Leyden jar light liquid machine magnetic ment mercury metal mirror motion muriatic acid nature needle object observed obtained particles pass pendulum phenomena philosophers piece piston placed plate pole position pressure principle produced proved quantity radiation rays receiver refracting telescope refraction retina Sir John Leslie solid specific gravity substance supposed surface temperature thermometer tion tricity tube vapour velocity vessel Voltaic electricity weight wire zinc
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الصفحة viii - It is the hour when lovers' vows Seem sweet in every whisper'd word ; And gentle winds, and waters near, Make music to the lonely ear. Each flower the dews have lightly wet, And in the sky the stars are met, And on the wave is deeper blue, And on the leaf a browner hue, And in the heaven that clear obscure, So softly dark, and darkly pure...
الصفحة 433 - ... the nipples. On the twenty-second day, these appearances were more elevated and distinct ; and on the twenty-sixth day, each figure assumed the form of a perfect insect, standing erect on a few bristles which formed its tail. Till this period, Mr. Crosse had no notion that these appearances were any other than an incipient mineral formation ; but it was not until the twenty-eighth day when he plainly perceived these little creatures move their legs, that he felt any surprise.
الصفحة 47 - Every body must persevere in its state of rest, or of uniform motion in a straight line, unless it be compelled to change that state by forces impressed upon it.
الصفحة 434 - ... some time after their birth, apparently averse to motion. In the course of a few weeks, about a hundred of them made their appearance on the stone. At first each of them fixed itself for a considerable time in one spot, appearing to feed by suction, but when a ray of light from the sun was directed upon it, it seemed disturbed, and removed itself to the shaded part of the stone. Out of about a hundred insects, not above five or six were born on the south side of the stone.
الصفحة 122 - ... reservoirs which contain them ; water forced by pressure in any direction through tubes or apertures, so as to form ornamental jets ; the motion of liquids through pipes and in channels ; the motion of rivers and canals ; and the resistance produced by the mutual impact of liquids and solids in motion. It is the peculiarity of this branch of hydrostatics, that, from various causes, the phenomena actually exhibited in nature or in the processes of art deviate so considerably from the results of...
الصفحة 423 - I consider the foregoing investigation as sufficient to prove the very extraordinary and important principle with respect to WATER, that when subjected to the influence of the electric current, a quantity of it is decomposed exactly proportionate to the quantity of...
الصفحة 375 - Perceiving, with his accustomed sagacity and penetration, that the decomposition would depend on duly proportioning the strength of the charge of Electricity to the quantity of water; and that the quantity exposed to its action at the surface of communication depends on the extent of that surface...
الصفحة 423 - ... together with the solution or recombination of the gas and the evolution of air, are guarded against, the products of the decomposition may be collected with such accuracy as to afford a very excellent and valuable measurer of the electricity concerned in their evolution.
الصفحة 431 - When this basin was filled with fluid, a strip of flannel, wetted with the same, was suspended over the . edge of the basin and inside the funnel, which, acting as a syphon, conveyed the fluid out of the basin through the funnel in successive drops. The middle shelf of the frame was likewise pierced with an aperture, in which was fixed a smaller funnel of glass...
الصفحة 293 - ... in making, and which he founded on the description he had received. They may, therefore, be considered as the experiments of M. Arago repeated, and varied as different circumstances occurred to suggest new ideas. The account he had of M. Arago's experiment, was that, by placing a copper plate upon a vertical spindle, the plate being horizontal, and then placing just above it a light compass needle, but independent, of course, of- the plate ; on causing the spindle and plate to revolve, the needle...