The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 30
... considerable thicknesses of solid bodies without being absorbed , so that they may often be detected outside an ordinary discharge tube in which the vacuum is sufficiently high , proceeding from the region of the glass upon which the ...
... considerable thicknesses of solid bodies without being absorbed , so that they may often be detected outside an ordinary discharge tube in which the vacuum is sufficiently high , proceeding from the region of the glass upon which the ...
Pagina 46
... considerable voltage to deflect the leaf L at all , and the leaf is sensitive to small changes in the value of its potential only when it has itself a considerable potential . C. T. R. Wilson has devised an instrument which is sensitive ...
... considerable voltage to deflect the leaf L at all , and the leaf is sensitive to small changes in the value of its potential only when it has itself a considerable potential . C. T. R. Wilson has devised an instrument which is sensitive ...
Pagina 51
... considerably on the thickness of the layers . The cause of these irregularities was subsequently shown by Owens ' to be due to air currents , and Rutherford has since shown . that this action depends on the removal from the thorium of a ...
... considerably on the thickness of the layers . The cause of these irregularities was subsequently shown by Owens ' to be due to air currents , and Rutherford has since shown . that this action depends on the removal from the thorium of a ...
Pagina 53
... considerable difficulty , par- ticularly as the quantities of the substances to be dealt with are exceedingly minute . The method of procedure adopted by Madame Curie was the following . In the separation of uranium from pitch- blende ...
... considerable difficulty , par- ticularly as the quantities of the substances to be dealt with are exceedingly minute . The method of procedure adopted by Madame Curie was the following . In the separation of uranium from pitch- blende ...
Pagina 57
... considerable purity ; but the interesting experiment of isolating radium itself remained still to be tried . Although it is possible to study the properties of radium when in a state of combination as a salt , it would obviously be of ...
... considerable purity ; but the interesting experiment of isolating radium itself remained still to be tried . Although it is possible to study the properties of radium when in a state of combination as a salt , it would obviously be of ...
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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