Collected Papers of Sir James Dewar... |
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Other editions - View all
Common terms and phrases
absorbed absorption acid action allowed amount apparatus appears atmosphere becomes bodies boiling boiling-point bubble bulb calorimeter carbon disulphide carbon monoxide caused cent charcoal chloride colour compared complete connected constant containing continued cooled critical curve density deposit determined diameter discharge effect electric evaporation examined exhausted experiments film flask further gases gave given gives glass heat helium immersed increase iron lead less light liquid air liquid hydrogen low temperatures lower means measured mercury metal method minutes molecular nickel carbonyl nitrogen observed obtained ordinary oxygen ozonizer passed present pressure Proc produced pure quantity radium reaction reduced remained resistance sealed shown shows silver similar solid solution space specific heat substance sulphur surface Table taken takes temperature thermometer tube vacuum vessel vapour vessel volume weight
Popular passages
Page 760 - Science is bound, by the everlasting law of honour, to face fearlessly every problem which can fairly be presented to it. If a probable solution, consistent with the ordinary course of nature, can be found, we must not invoke an abnormal act of Creative Power.
Page 715 - On partially liquefying carbonic acid by pressure alone, and gradually raising at the same time the temperature to 88° Fahr., the surface of demarcation between the liquid and gas became fainter, lost its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering striae throughout its entire mass.
Page 713 - It seems possible to account for all the phenomena of heat, if it be supposed that in solids the particles are in a constant state of vibratory motion, the particles of the hottest bodies moving with the greatest velocity...
Page 759 - In fact, the whole process of evolution is the manifestation of a Power absolutely inscrutable to the intellect of man. As little in our day as in the days of Job can man by searching find this Power out.
Page 684 - By means of this hydrogen jet, liquid air can be quickly transformed into a hard solid. It was shown that such a jet could be used to cool bodies below the temperature that it is possible to reach by the use of liquid air, but all attempts to collect the liquid hydrogen from the jet in vacuum vessels failed. No other investigator improved on my results (Proc.
Page 768 - New experiments and observations touching cold, or, An experimental history of cold, begun.
Page 680 - The above methods have 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 formulae, to calculate the critical constants, and also the boiling point of liquid hydrogen.
Page 690 - With hydrogen as a cooling agent we shall get to from 13° to 15° of the zero of absolute temperature, and its use will open up an entirely new field of scientific inquiry.
Page 759 - The impregnable position of science may be described in a few words. We claim, and we shall wrest from theology, the entire domain of cosmological theory. All schemes and systems which thus infringe upon the domain of science must, in so far as they do this, submit to its control, and relinquish all thought of controlling it.
Page 776 - He showed that this temperature is constant, and differs with each substance, and that it is always associated with a definite pressure peculiar to each body. Thus the two constants, critical temperature and pressure, which have been of the greatest importance in subsequent investigations, came to be defined, and a complete experimental proof was given that ''the gaseous and liquid states are only distinct stages of the same condition of matter and are capable of passing into one another by a process...
Bibliographic information
| Title | Collected Papers of Sir James Dewar... Volume 2 of Collected Papers of Sir James Dewar, Ernest Charles Scott Dickson |
| Author | Sir James Dewar |
| Editors | Lady Helen Rose Banks Dewar, James Douglas Hamilton Dickson |
| Publisher | The University Press, 1927 |
| Original from | the University of Wisconsin - Madison |
| Digitized | 17 Jan 2008 |
| Export Citation | BiBTeX EndNote RefMan |