Experimental Researches in Electricity, Volume 3Richard and John Edward Taylor, printers and publishers to the University of London, 1855 - Electricity |
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acid æther amount antimony appears atmosphere attraction axial line battery bismuth carbonic acid cause cobalt cocoon silk condition conducting power conductor considered copper copper wire core crystal curves cylinder deflection degree diamagnetic bodies direction distance earth east effect electric current electro-magnet equal equatorial experimental experiments external fluid former galvanometer gases globe gravity gutta percha heavy glass helix Hobarton horizontal inch in diameter induced intensity lines of force lines of magnetic magnecrystallic axis magnetic action magnetic axis magnetic field magnetic force magnetic lines magnetic meridian magnetic needle magnetic poles mass matter metal motion moving wire netic nickel nitrogen nitrous oxide observed oxygen paramagnetic particles passing phænomena Philosophical piece plane plates polarity position present produced relation repelled repulsion revolution rotation side soft iron solution space substances surface suspended temperature thickness tion tube variation whilst
Popular passages
Page 507 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to. another, is to me so great an absurdity that I believe no man, who has iu philosophical matters a competent faculty of thinking, can ever fall into it.
Page 4 - In this state of circumstances the force of the electro-magnet was developed, by sending an electric current through its coils, and immediately the image of the lamp-flame became visible, and continued so as long as the arrangement continued magnetic. On stopping the electric current, and so causing the magnetic force to cease, the light instantly disappeared ; these phaenomena could be renewed at pleasure, at any instant of time, and upon any occasion, showing a perfect dependence of cause and effect.
Page 6 - They give the diamagnetic the power of rotating the ray ; and the law of this action on light is, that if a magnetic line of force be going from a north pole or coming from a south pole, along the path of a polarized ray coming to the observer, it will rotate that ray to the right hand ; or, that if such a line of force be coming from a north pole or going from a south pole, it will rotate such a ray to the left hand.
Page 1 - held an opinion, almost amounting to conviction, in common, I believe,. with many other lovers of natural knowledge, that the various forms under which the forces of matter are made manifest have one common origin; in other words, are so directly related and mutually dependent, that they are convertible, as it were, into one another, and possess equivalents of power in their action.
Page 73 - Ampere's theory, this view would be equivalent to the supposition that, as currents are induced in iron and magnetics, parallel to those existing in the inducing magnet or battery wire, so, in bismuth and other diamagnetics, the currents induced are in the contrary direction.
Page 2 - ... that the various forms under which the forces of matter are made manifest have one common origin; or, in other words, are so directly related and mutually dependent, that they are convertible, as it were, one into another, and possess equivalents of power in their action.
Page 447 - In the latter view, these little particles have a definite form and a certain limited size; in the former view such is not the case, for that which represents size may be considered as extending to any distance to which the lines of force of the particle extend : the particle indeed is supposed to exist only by these forces, and where they are it is.
Page 516 - ... will make a difference in the results. And in regard to long circuits such as those described, their conducting power cannot be understood, whilst no reference is made to their lateral static induction, or to the conditions of intensity and quantity which then come into play ; especially in the case of short or intermitting currents — for then static and dynamic are continually passing into each other. It has already been said that the conducting power of the air and water wires are alike for...
Page 20 - The magnetic forces do not act on the ray of light directly and without the intervention of matter, but through the mediation of the substance in which they and the ray have a simultaneous existence; the substances and the forces giving to and receiving from each other the power of acting on the light.
Page 519 - ... the same voltaic source, the same current in the same length of the same wire gives a different result as the intensity is made to vary with -variations of the induction around the wire. The idea of intensity, or the power of overcoming resistance, is as necessary to that of electricity, either static or current, as the idea of pressure is to steam in a boiler, or to air passing through apertures or tubes, and we must have language competent to express these conditions and these ideas.