The New Physics and Its EvolutionK. Paul, Trench, Trübner, 1907 - 344 pagini |
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Pagina ix
... -33 ) . § 4. The Measure of Time : Unit of time the second - Alternative units proposed - Improvements in chronometry and invar ( pp . 34-37 ) . § 5. The Measure 1-18 . 19-50 = of Temperature : Fundamental and derived units - Or- dinary ix.
... -33 ) . § 4. The Measure of Time : Unit of time the second - Alternative units proposed - Improvements in chronometry and invar ( pp . 34-37 ) . § 5. The Measure 1-18 . 19-50 = of Temperature : Fundamental and derived units - Or- dinary ix.
Pagina x
Lucien Poincaré. of Temperature : Fundamental and derived units - Or- dinary unit of temperature purely arbitrary - Absolute unit mass of H at pressure of 1 m . of Hg at 0 ° C.- Divergence of thermometric and thermodynamic scales -Helium ...
Lucien Poincaré. of Temperature : Fundamental and derived units - Or- dinary unit of temperature purely arbitrary - Absolute unit mass of H at pressure of 1 m . of Hg at 0 ° C.- Divergence of thermometric and thermodynamic scales -Helium ...
Pagina xi
... Temperatures : Linde's , Siemens ' , and Claude's methods of liquefying gases - Apparatus of Claude de- scribed - Dewar's experiments - Modification of electrical properties of matter by extreme cold : of magnetic and chemical ...
... Temperatures : Linde's , Siemens ' , and Claude's methods of liquefying gases - Apparatus of Claude de- scribed - Dewar's experiments - Modification of electrical properties of matter by extreme cold : of magnetic and chemical ...
Pagina 14
... firmly . They study the various magni- tudes directly accessible to their observation without busying themselves as to their essence . They measure quantities of heat and of temperature , differ- ences 14 THE NEW PHYSICS AND ITS EVOLUTION.
... firmly . They study the various magni- tudes directly accessible to their observation without busying themselves as to their essence . They measure quantities of heat and of temperature , differ- ences 14 THE NEW PHYSICS AND ITS EVOLUTION.
Pagina 15
Lucien Poincaré. measure quantities of heat and of temperature , differ- ences of potential , currents , and magnetic fields ; and then , varying the conditions , apply the rules of experimental method , and discover between these ...
Lucien Poincaré. measure quantities of heat and of temperature , differ- ences of potential , currents , and magnetic fields ; and then , varying the conditions , apply the rules of experimental method , and discover between these ...
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absolute actinium action analogous appear atoms becomes bodies calorific cathode rays centimetre chemical Clausius complete conservation of energy considerable considered constant constitution contrary corresponding Crookes tube discovery dissociated domain Duhem Edition effected elastic electric electrolytes electromagnetic electrons endeavoured energy entropy enunciated equilibrium ether evolution exist experimental experiments fact fluids gaseous gases give given heat Hertz hydrogen hypothesis idea important ions J. J. Thomson kinetic theory known laws light liquid Lord Kelvin luminous Madame Curie magnetic field magnitude mass matter measure mechanics metals method metre millimetre molecular molecules moreover movement nature obtained optical ordinary particles particular phenomena phenomenon physicists physics possible precision present pressure principle of Carnot produced Professor propagation properties quantity question radiations radioactive radium reality regard relation remarkable researches scholars seems solid solution speed substances succeeded temperature thermodynamics tion transformations tube unit variations velocity vibrations vis viva wave-lengths waves
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Pagina 19 - I often say that if you can measure that of which you speak, and can express it by a number, you know something of your subject ; but if you cannot measure it, your knowledge is meagre and unsatisfactory.