Collected Papers of Sir James Dewar...
The University Press, 1927 - 1489 pages
What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
Common terms and phrases
action action of light amount animal apparatus appeared atmospheres bases becomes bismuth bodies boiling carbonic acid caused cent chemical chloride compound condition considerable constant containing continuous cooling curves deflection determined diameter effect electrical electromotive force employed examined experiments fact Fall fluid galvanometer gases gave give given glass heat hydrogen impact increase intensity iron Leblanc process light lines liquid oxygen LIVEING lower magnetic means measured mercury metals method minute nerve nitrogen observations obtained ordinary oxide ozone passing placed platinum pole portion position possible present pressure Proc produced Professor proved pure quantity regard remained removal represented resistance Rise salt shown side silver similar solid solution specific substance sulphuric surface taken temperature tube units vacuum vapour variation various vessel volume weight wire
Page 310 - Particles, would not be of the same Nature and Texture now, with Water and Earth composed of entire Particles in the Beginning. And therefore that Nature may be lasting, the Changes of Corporeal Things are to be placed only in the various Separations and new Associations and Motions of these permanent Particles...
Page 466 - The above methods having failed to produce "static" hydrogen, Wroblewski suggested that the result might be attained by the use of hydrogen gas as a cooling agent. From this time until his death in the year 1888 Wroblewski devoted his time to a laborious research on the isothermals of hydrogen at low temperatures. The data thus arrived at enabled him, by the use of Van der Waal's formula}, to calculate the critical constants and boiling point of liquid hydrogen.
Page 310 - I had rather infer from their Cohesion, that their Particles attract one another by some force, which in immediate Contact is exceeding strong, at small distances performs the chymical Operations above mention'd, and reaches not far from the Particles with any sensible Effect There are therefore Agents in Nature able to make the Particles of Bodies stick together by very strong Attractions.
Page 163 - On filing off the end of the tube, its contents exploded and the oily matter vanished. Early next morning, Dr. Paris received the following note: Dear Sir — The oil you noticed yesterday turns out to be liquid chlorine. Yours faithfully, M. Faraday The gas had been liquefied by its own pressure.
Page 61 - that from the point (about 600°) at which the specific heat of carbon ceases to vary with increase of temperature, and becomes comparable with that of other elements...
Page 91 - A prepared daguerreotype plate is enclosed in a box filled with water, having a glass front with a shutter over it. Between this glass and the plate is a gridiron of silver wire ; the plate is connected...
Page 85 - ... got at a distance of one foot, whereas the electro-motive force, instead of being altered in the same proportion, is only reduced to one-third. Repeated experiments made with the eye in different positions have conclusively shown that a quantity of light one hundred times in excess of another quantity only modifies the electro-motive force to the extent of increasing it three times as much, certainly not more. 9. It was apparent that these experiments would ultimately bear upon the theory of...
Page 398 - ... another — that is to say, in contact ; and does not seem to provide for any considerable increase of attraction when the area of contact is increased, whether by pressing the bodies together, or by shaping them to fit over a large area. But if we take into account the heterogeneous distribution of density essential to any molecular theory of matter, we readily see that it alone is sufficient to intensify the force of gravitation between two bodies placed extremely close to one another, or between...
Page 53 - Foucalt's experiments that sunlight has 150 times the luminous intensity of the lime light ; so that we only require to calculate at what temperature this intensity is reached in order to get the solar temperature. This temperature is 16,000° C., in round numbers. Enormously high temperatures are not required, therefore, to produce great luminous intensities, and the temperature of the sun need not, at least, exceed the above number. Sir William Thomson, in his celebrated article, " On the Age of...
Page 163 - There can scarcely be a doubt entertained respecting the reducibility of all elastic fluids of whatever kind into liquids; and -we ought not to despair of effecting it in low temperatures, and by strong pressure exerted upon the unmixed gases.