Philosophical Transactions, Giving Some Account of the Present Undertakings, Studies, and Labours of the Ingenious, in Many Considerable Parts of the World

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Royal Society of London, 1855 - Meteorology
 

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Page 45 - ... line of pressure was parallel to the length of each. The rectangular box before referred to was suspended from its centre of gravity O in the magnetic field, so that the two prisms were in the same horizontal plane. Let the position of the box thus suspended horizontally be that shown in fig. 2.
Page 37 - ... been adhered to : if this be the case, then the inference appears unavoidable, that the diamagnetic force is a polar force, the polarity of diamagnetic bodies being opposed to that of paramagnetic ones under the same conditions of excitement-^-.
Page 101 - This fluidity may be very imperfect; it may be mere viscidity ; it may even be little more than that degree of yielding which (as is well known to miners) shows itself by changes in the floors of subterraneous chambers at a great depth when their width exceeds 20 or 30 feet; and this yielding may be sufficient for my present explanation.
Page 3 - It was also proved that the force which determined the position of the optic axes in the magnetic field was not independent of the magnetism or diamagnetism of the mass of the crystal ; inasmuch as two crystals, of the same form and structure, exhibited altogether different effects, when one of them was magnetic and the other diamagnetic.
Page 103 - I conceive that there can be no other support than that arising from the downward projection of a portion of the earth's light crust into the dense...
Page 5 - FOUR years ago I suggested that all the phenomena presented by diamagnetic bodies, when subjected to the forces in the magnetic field, might be accounted for by assuming that they then possessed a polarity the same in kind as, but the reverse in direction of, that acquired by iron, nickel and ordinary magnetic bodies under the same circumstances (2429.
Page 281 - The outer membrane is smooth and glassy, homogeneous in structure and sprinkled over with minute rounded and transparent bodies, probably the nuclei of cells. Beneath this layer, flat bundles of fibres, apparently muscular, are traceable here and there, principally disposed in a longitudinal direction, and sometimes branched. The lining membrane consists of a loose epithelial pavement in many respects similar to that of the uriniferous tubules of the higher animals, the cells containing, besides...
Page 248 - ... distance apart. At the same time the fibre strikingly decreases in diameter ; for as the nuclei separate, the lateral bands fall in and ultimately coalesce. This lengthening of the fibre and consequent separation of the nuclei is due to an increase of material, and not to a stretching of the fibre. Soon after the nuclei have separated some of them begin to decay. They increase in size ; their outline becomes indistinct ; a bright border appears immediately within their margin ; their contents...
Page 26 - ... of an inch in diameter, was permitted to swing freely, while surrounded by the helix. With this arrangement, the following experiments were, or might be made: — 1. A voltaic current from twenty of Grove's cells was sent through the helix...

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