The New Physics and Its EvolutionK. Paul, Trench, Trübner, 1907 - 344 pagini |
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Pagina xiv
... Radioactive Substances : Uranic rays of Niepce de St Victor and Becquerel - General radioactivity of matter— Le Bon's and Rutherford's comparison of uranic with X rays - Pierre and Mme . Curie's discovery of polonium and radium - Their ...
... Radioactive Substances : Uranic rays of Niepce de St Victor and Becquerel - General radioactivity of matter— Le Bon's and Rutherford's comparison of uranic with X rays - Pierre and Mme . Curie's discovery of polonium and radium - Their ...
Pagina 35
... radioactive by a solution of radium , the tube may be sealed up , and it will then be noted that the radiation of its walls diminishes with time , in accordance with an exponential law . The constant of time defined by this phenomenon ...
... radioactive by a solution of radium , the tube may be sealed up , and it will then be noted that the radiation of its walls diminishes with time , in accordance with an exponential law . The constant of time defined by this phenomenon ...
Pagina 53
... radioactive bodies has , in some sort , rendered popular the speculations of physicists on the phenomena of the disaggregation of matter . We shall have to seek the exact meaning which ought to be given to the experiments on the ...
... radioactive bodies has , in some sort , rendered popular the speculations of physicists on the phenomena of the disaggregation of matter . We shall have to seek the exact meaning which ought to be given to the experiments on the ...
Pagina 125
... radioactive changes , is also gaining ground . The discovery of the radioactive mineral malacone , which gives off both helium and argon , goes to support this . See Messrs Ketchin and Winterson's paper on the subject at the Chemical ...
... radioactive changes , is also gaining ground . The discovery of the radioactive mineral malacone , which gives off both helium and argon , goes to support this . See Messrs Ketchin and Winterson's paper on the subject at the Chemical ...
Pagina 257
... real grain of dust . We here doubtless meet with the phenomena of disaggregation under- gone by metals at a red heat . CHAPTER IX CATHODE RAYS AND RADIOACTIVE BODIES § 1. THE 17 CONDUCTIVITY OF GASES AND THE IONS 257.
... real grain of dust . We here doubtless meet with the phenomena of disaggregation under- gone by metals at a red heat . CHAPTER IX CATHODE RAYS AND RADIOACTIVE BODIES § 1. THE 17 CONDUCTIVITY OF GASES AND THE IONS 257.
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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.