The Mechanics' Magazine, Museum, Register, Journal, and Gazette, Volumen 32M. Salmon, 1840 |
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Página 27
... arose entirely from my not having then , unfortu- nately , a correct copy of the logs of both vessels . " Observator " says , any of the journals of the above date ( the 15th and 66 a given weight , or will vibrate as far with.
... arose entirely from my not having then , unfortu- nately , a correct copy of the logs of both vessels . " Observator " says , any of the journals of the above date ( the 15th and 66 a given weight , or will vibrate as far with.
Página 29
... given weight of the bob of a pendulum , some particular length and strength of the suspending spring is better adapted than any other to produce isochronism , and with such spring the pen- dulum will vibrate through a larger arc with ...
... given weight of the bob of a pendulum , some particular length and strength of the suspending spring is better adapted than any other to produce isochronism , and with such spring the pen- dulum will vibrate through a larger arc with ...
Página 30
a given weight , or will vibrate as far with a less weight than with any other , and that , unless the pendulum is first isochronized , anomalies may be imputed to imperfect com- pensation , which have their origin in a very different ...
a given weight , or will vibrate as far with a less weight than with any other , and that , unless the pendulum is first isochronized , anomalies may be imputed to imperfect com- pensation , which have their origin in a very different ...
Página 36
... given by the chain of suspension itself , if it were to be graduated for the purpose . Now the reader will be pleased to ob- serve , that the voice pipe A represented in the diagram , plays freely in its undula- tions through fluids ...
... given by the chain of suspension itself , if it were to be graduated for the purpose . Now the reader will be pleased to ob- serve , that the voice pipe A represented in the diagram , plays freely in its undula- tions through fluids ...
Página 52
... given of a new contrivance to illu- minate the face of the clock at the Horse Guards . When I was at Glasgow in the year 1826 , the same method was employed to illuminate the face of the clock of the Tron church with carburetted ...
... given of a new contrivance to illu- minate the face of the clock at the Horse Guards . When I was at Glasgow in the year 1826 , the same method was employed to illuminate the face of the clock of the Tron church with carburetted ...
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Página 453 - Almighty's form Glasses itself in tempests; in all time, Calm or convulsed, in breeze, or gale, or storm, Icing the pole, or in the torrid clime Dark-heaving; boundless, endless, and sublime, The image of Eternity, the throne Of the invisible,— even from out thy slime The monsters of the deep are made; each zone Obeys thee; thou goest forth, dread, fathomless, alone.
Página 31 - The metal is a combination of copper and zinc, the best admixture being found to be 60 per cent, of the former and 40 per cent of the latter. The...
Página 90 - April, 1783, in which he reasons on the experiment of burning the two gases in a close vessel, and draws the conclusion, " that water is composed of dephlogisticated air and phlogiston, deprived of part of their latent heat."* The letter was received by Dr.
Página 89 - about one-fifth of the common air, and nearly all the inflammable air, lose their elasticity, and are condensed into the dew which lines the glass.
Página 89 - Priestley's 5th volume,* gave rise to this inquiry, at least in England ; Mr. Cavendish expressly refers to it, as having set him upon making his experiments. — (Phil. Trans. 1784, p. 126.) The experiment of Mr. Warltire consisted in firing, by electricity, a mixture of inflammable and common air in a close vessel, and two things were said to be observed : first, a sensible loss of weight ; second, a.
Página 584 - ... fixed in a bottle, and the quantity of rain caught is ascertained by multiplying the weight in ounces by 173, which gives the depth in inches and parts of an inch.
Página 187 - I now declare that what I claim as my invention, and wish to secure by letters patent, is the construction and...
Página 89 - Priestley's 5th volume. Mr. Cavendish himself could find no loss of weight, and he says that Dr. Priestley had also tried the experiment, and found none. But Mr. Cavendish found there was always a dewy deposit, without any sooty matter. The result of many trials was, that common air and inflammable air being...
Página 91 - Cavendish leaves it uncertain, whether or not he meant by phlogiston simply inflammable air, and he inclines rather to call inflammable air, water united to phlogiston. Mr. Watt says expressly, even in his later paper (of November 1783), and in a passage not to be found in the letter of April 1783, that he thinks that inflammable air contains a small quantity of water, and much elementary heat. It must be admitted that such expressions as these on the part of both of those great men, betoken a certain...
Página 89 - Lavoisier, as well as of the conclusion drawn from them, that dephlogisticated air is only water deprived of its phlogiston; but, at that time, so far was M. Lavoisier from thinking any such opinion warranted, that till he was prevailed upon to repeat the experiment himself, he found some difficulty in believing that nearly the whole of the two airs could be converted into water.