Report of the Annual Meeting, المجلد 32Office of the British Association, 1863 |
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الصفحة 132
... conducting power . Mercury would be free from the objection that its molecular condition might change ; but , on the other hand , it appears from Report C that the mercury itself would require to be continually changed , and that ...
... conducting power . Mercury would be free from the objection that its molecular condition might change ; but , on the other hand , it appears from Report C that the mercury itself would require to be continually changed , and that ...
الصفحة 134
... conducting powers obtained by different observers . Electrotype copper is excepted from this remark . They also ... power by different observers vary much , that the tube used cannot be kept full of mercury for any length of time , as it ...
... conducting powers obtained by different observers . Electrotype copper is excepted from this remark . They also ... power by different observers vary much , that the tube used cannot be kept full of mercury for any length of time , as it ...
الصفحة 136
... electric conduct- ing power of the metals amounts to 29.3 per cent . on their conducting power between 0 ° and 100 ° C. : an exception to this law has been found in iron † , the conducting power of which decreases between those limits ...
... electric conduct- ing power of the metals amounts to 29.3 per cent . on their conducting power between 0 ° and 100 ° C. : an exception to this law has been found in iron † , the conducting power of which decreases between those limits ...
الصفحة 137
... conducting power between 0 ° and 100 ° to a small extent . It must also be borne in mind that the alloy sought for must be a ductile one , capable of being drawn into wire , not too soft , as would easily be damaged by covering and ...
... conducting power between 0 ° and 100 ° to a small extent . It must also be borne in mind that the alloy sought for must be a ductile one , capable of being drawn into wire , not too soft , as would easily be damaged by covering and ...
الصفحة 138
... Conducting power . T. Found . 11.0 45.591 55.5 40.333 100 . 37.560 X = 44-472-0-0815251 + 0-0003240ť . This alloy was taken to see the effect such a combination would have . Length 244 mm . ; diameter 0.682 mm . ( + ) Platinum .. 66.6 ...
... Conducting power . T. Found . 11.0 45.591 55.5 40.333 100 . 37.560 X = 44-472-0-0815251 + 0-0003240ť . This alloy was taken to see the effect such a combination would have . Length 244 mm . ; diameter 0.682 mm . ( + ) Platinum .. 66.6 ...
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عبارات ومصطلحات مألوفة
1st mag 2nd mag alloy altitude annealed appears ascent August August 20 axis balloon Barometer blue body British Association cent centre classes cloud coefficients colour Committee compass conducting power copper COUNTIES continued Crystal Palace Daniell's determined deviation dew-point direction Division Dry and Wet electrical electrical resistance electromotive force ellipsoid equal equations experiments feet Fleeming Jenkin force formulæ function given greatest common divisor hard-drawn heat height horizontal Hygrometer inches increase instruments invariable plane iron July Kew Observatory length Liverpool LL.D London magnetism Manchester means memoir mercury meteor miles motion nearly observations Observatory obtained p.m. Ibid plane present principal axes Prof Professor projectile properly primitive pure metals quantity Regnault's remarkable Report resistance rotation ship species standard surface Temp temperature theorem theory thermometers tion tube unit velocity vertical vessel Vis Viva wire
مقاطع مشهورة
الصفحة xvii - To give a stronger impulse and a more systematic direction to scientific inquiry, — to promote the intercourse of those who cultivate Science in different parts of the British Empire, with one another, and with foreign philosophers, — to obtain a more general attention to the objects of Science, and a removal of any disadvantages of a public kind which impede its progress.
الصفحة 106 - Such facts show how indirectly the conditions of life must act. Again, innumerable instances are known to every naturalist of species keeping true, or not varying at all, although living under the most opposite climates. Such considerations as these incline me to lay very little weight on the direct action of the conditions of life.
الصفحة 213 - Report on the Marine Testaceous Mollusca of the North-east Atlantic and Neighbouring Seas, and the physical conditions affecting their development ; — PP Carpenter, Report on the present state of our knowledge with regard to the Mollusca of the West Coast of North America;— TC Eyton, Abstract of First Keport on the Oyster Beds and Oysters of the British Shoreil — Prof.
الصفحة 121 - I am directed by the Lords of the Committee of Council on Education to request that you will be good enough to furnish me with twenty copies of your pamphlet ' On the Opportunities of Advancing Science enjoyed by the Mercantile Marine,' to send to all the Navigation Schools under this department.
الصفحة 101 - ... confounded with the African kinds, are known from them by the short, broad shape of the intermaxillary bone, which is separated from the maxilla by a straight suture, while in the crocodiles of the African rivers the intermaxillary bone is produced behind and between the edge of the maxilla. One species...
الصفحة 381 - ... my legs projected and my arms hung down by my side; that my countenance was serene and placid, without the earnestness and anxiety he had noticed before going into the ring, and then it struck him I was insensible. He wished to approach me, but could not, and he felt insensibility coming over himself; that he became anxious to open the valve, but in consequence of having lost the use of his hands he could not, and ultimately did so by seizing the cord with his teeth and dipping his head two or...
الصفحة 252 - Huyghens' construction, and only attempted at a later date to give it a mechanical basis. In this attempt he failed. " If we reflect," says Stokes, " on the state of the subject as Fresnel found it and as he left it, the wonder is not that he failed to give a rigorous dynamical theory, but that a single mind was capable of effecting so much.
الصفحة 382 - A fourth was thrown out at four miles on descending ; it flew in a circle, and shortly alighted on the top of the balloon. The two remaining pigeons were brought down to the ground. One was found to be dead ; and the other, a carrier...
الصفحة 372 - Regnault's hygrometers, and also to compare the results as found by the two hygrometers together ; to collect air at different elevations ; to note the height and kind of clouds, their density and thickness, at different elevations ; to determine the rate and direction of different currents in the atmosphere, if possible ; to make observations on sound ; to note atmospherical phenomena in general, and to make general observations.
الصفحة 379 - ... saturated with moisture. On emerging from the cloud at Ih. 17m. we came into a flood of light, with a beautiful blue sky, without a cloud above us, and a magnificent sea of cloud below, its surface being varied with endless hills, hillocks, mountain chains, and many snow-white masses rising from it. I here tried to take a view with the camera, but we were rising with too great...