Of optics, magnetism, electricity, & galvanismM. Carey, 1815 |
De dentro do livro
Resultados 1-5 de 30
Página 229
... chain to the cushion at R , which being se- veral feet long , lies on the table , or on the floor , and this you know is connected , by VOL . III . U means of other objects , with the earth , which ELECTRICAL MACHINE . 229.
... chain to the cushion at R , which being se- veral feet long , lies on the table , or on the floor , and this you know is connected , by VOL . III . U means of other objects , with the earth , which ELECTRICAL MACHINE . 229.
Página 231
... chain over the conductor , so that one end of it may lie on the floor . See now if you can get any sparks while I turn the machine . James . No , I can get none , put my kuckle as near to it as I will . - Does it all run away by the chain ...
... chain over the conductor , so that one end of it may lie on the floor . See now if you can get any sparks while I turn the machine . James . No , I can get none , put my kuckle as near to it as I will . - Does it all run away by the chain ...
Página 232
... chain trailing on the ground , the electric fluid is collected from the earth on the glass cylinder , which gives it through the points to the conductor : from this it may be conveyed away again by means of other conductors . Tutor ...
... chain trailing on the ground , the electric fluid is collected from the earth on the glass cylinder , which gives it through the points to the conductor : from this it may be conveyed away again by means of other conductors . Tutor ...
Página 235
... chain , by conducting the fluid from the earth to the cushion ? Futor . Undoubtedly : I will take off the chain , and now do you keep your hand on the cushion while I turn the handle . James . I see the machine works as well as ...
... chain , by conducting the fluid from the earth to the cushion ? Futor . Undoubtedly : I will take off the chain , and now do you keep your hand on the cushion while I turn the handle . James . I see the machine works as well as ...
Página 236
Jeremiah Joyce. James . I see the machine works as well as when the chain was on the ground . Tutor . Keep your present position , but stand on the stool with glass legs ; by which means there is now all communica- tion cut off between ...
Jeremiah Joyce. James . I see the machine works as well as when the chain was on the ground . Tutor . Keep your present position , but stand on the stool with glass legs ; by which means there is now all communica- tion cut off between ...
Outras edições - Ver todos
Termos e frases comuns
acid angle animals appear attract aurora borealis ball battery body brass bring called candle chain charge Charles colours concave lens concave mirror conducting substance conductor CONVERSATION convex lens copper cylinder diameter discharge diverge ductor earth effect elec electric fluid electrified electrometer excited experiment eye-glass fixed focal distance focus Galvanism glass tube gold gymnotus hand hold humours inches insulated inverted iron James knob knuckle Leyden jar looking-glass magnet magnifying means metals motion natural share needle negative nerve nitric acid object object-glass oxidation paper pass phial piece of silver piece of zinc pith-balls Plate VIII poles position produced quantity rays of light reflected Refracting telescopes refraction repel retina rubber rubbing seen shock side south pole spark stand surface telescope tin foil tion touch tric fluid tricity Tutor Voltaism wire zinc
Passagens mais conhecidas
Página 54 - Thus with the year Seasons return ; but not to me returns Day, or the sweet approach of even or morn, Or sight of vernal bloom, or summer's rose, Or flocks, or herds, or human face divine ; But cloud instead, and everduring dark Surrounds me, from the cheerful ways of men Cut off, and for the book of knowledge fair Presented with a universal blank Of nature's works, to me expunged and rased, And wisdom at one entrance quite shut out.
Página 121 - Meantime, refracted from yon eastern cloud, Bestriding earth, the grand ethereal bow Shoots up immense; and every hue unfolds, In fair proportion, running from the red To where the violet fades into the sky.
Página 77 - Since c 6 is perpendicular to the glass at *), the angle of incidence is abc ; and as the angle of reflection is always equal to the angle of incidence...
Página 11 - How distant some of these nocturnal suns ! So distant (says the sage) 'twere not absurd To doubt if beams, set out at Nature's birth, Are yet arrived at this so foreign world, Though nothing half so rapid as their flight.
Página 33 - A lens is glass ground into such a form, as to collect or disperse the rays of light which pass through it. These are of different shapes, and from thence receive different names.
Página 287 - As he was sitting with a friend in the open air, an hour after sun-set, they saw a falling, or as it is sometimes called, a shooting star, directing its course towards them, growing apparently larger and larger, till it disappeared not far from them, and, disappearing, it left their faces, hands, and clothes, with the earth, and neighbouring objects, suddenly illuminated with a diffused and lambent light, attended with no noise at all.
Página 129 - Yes ; the three glasses next the eye having their focal distances equal, the magnifying power is found by dividing the focal distance of the object-glass by the focal distance of one of the eye-glasses.
Página 58 - First the flaming red Sprung vivid forth; the tawny orange next; And next delicious yellow; by whose side Fell the kind beams of all-refreshing green. Then the pure blue, that swells autumnal skies, Ethereal...
Página 291 - Even in the depth of polar night, they find A wondrous day; enough to light the chase, Or guide their daring steps to Finland fairs.
Página 121 - Shoots up immense ; and every hue unfolds, In fair proportion running from the red, To where the violet fades into the sky. Here, awful Newton, the dissolving clouds Form, fronting on the sun, thy showery...