The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 4
... large that they can be measured by means of a fairly sensitive galvanometer . As a further example of a similar effect on the conducting power of gases may be mentioned the action of light of such THE RADIOACTIVE SUBSTANCES.
... large that they can be measured by means of a fairly sensitive galvanometer . As a further example of a similar effect on the conducting power of gases may be mentioned the action of light of such THE RADIOACTIVE SUBSTANCES.
Pagina 6
... similar properties , which appear to continually emit radiations capable of rendering gases in their neighbourhood conductors . The pro- perties and nature of these radiations will also be fully described later , but it will first be ...
... similar properties , which appear to continually emit radiations capable of rendering gases in their neighbourhood conductors . The pro- perties and nature of these radiations will also be fully described later , but it will first be ...
Pagina 14
... dilute solutions of known concentration . In a manner somewhat similar to this it is possible to measure the sum of the velocities of the ions in a gas . If C be the current per unit area which passes 14 THE RADIOACTIVE SUBSTANCES.
... dilute solutions of known concentration . In a manner somewhat similar to this it is possible to measure the sum of the velocities of the ions in a gas . If C be the current per unit area which passes 14 THE RADIOACTIVE SUBSTANCES.
Pagina 19
... similar calculation , since the discharged ions cannot be collected and their volume estimated as in the above case . It has , however , been shown by Professor J. J. Thomson that the number of ions per c.c. in a gas can be in- directly ...
... similar calculation , since the discharged ions cannot be collected and their volume estimated as in the above case . It has , however , been shown by Professor J. J. Thomson that the number of ions per c.c. in a gas can be in- directly ...
Pagina 29
... similar to the cathode rays . THE RÖNTGEN RAYS We have seen that when the cathode rays strike the walls of the vessel in which they are being generated they produce phosphor- escence , but under ordinary circumstances the rays do not ...
... similar to the cathode rays . THE RÖNTGEN RAYS We have seen that when the cathode rays strike the walls of the vessel in which they are being generated they produce phosphor- escence , but under ordinary circumstances the rays do not ...
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Termeni și expresii frecvente
absorption actinium active deposit ALPHA RAYS aluminium atomic weight barium Becquerel bismuth Boltwood cathode rays centimetres charge carried charged particles chemical considered contained corpuscles crystals Curie and Danne deflected density detected discovery effect electric field electrolysis electrometer electroscope emana experiments exposed fact fluorescence formed Fourth Edition gases gramme of radium heat helium hydrogen Illustrations insulated ionization J. J. Thomson known light LL.D Madame Curie magnetic field matter measured metals method minerals nature negative ions negatively charged obtained passing phenomena Phil pitchblende polonium present pressure produced properties quantity of emanation quantity of radium radiation emitted radio radioactive bodies radioactive elements radioactive substances radium bromide radium chloride radium emanation radium salt rate of decay removed Röntgen rays Rutherford Rutherford and Soddy seen separated shown solution temperature thorium thorium emanation tion transformed tube uranium velocity vessel weight of radium wire