The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 17
... gives the relation required . Although several methods have been used to measure the sum of the velocities of the ions and their velocities separately , sufficient has been said to indicate how these quantities can be determined . The ...
... gives the relation required . Although several methods have been used to measure the sum of the velocities of the ions and their velocities separately , sufficient has been said to indicate how these quantities can be determined . The ...
Pagina 21
... gives an estimate of the size of the water particles forming the cloud , and if , further , some method can be devised for finding the total quantity of water contained in the cloud , it is a matter merely of calculation to deter- mine ...
... gives an estimate of the size of the water particles forming the cloud , and if , further , some method can be devised for finding the total quantity of water contained in the cloud , it is a matter merely of calculation to deter- mine ...
Pagina 22
... a slightly different method , gives the value as 3.1 × 10-10 . Considering the diffi- culties of the experiments both these values agree sufficiently nearly with that obtained for the charge carried 22 22 THE RADIOACTIVE SUBSTANCES.
... a slightly different method , gives the value as 3.1 × 10-10 . Considering the diffi- culties of the experiments both these values agree sufficiently nearly with that obtained for the charge carried 22 22 THE RADIOACTIVE SUBSTANCES.
Pagina 26
... gives us a relation between and v . m In order to find them separately it is necessary to find another rela- tion between these two quantities , and this is done by measuring the deflection of the rays an electric field . Consider the ...
... gives us a relation between and v . m In order to find them separately it is necessary to find another rela- tion between these two quantities , and this is done by measuring the deflection of the rays an electric field . Consider the ...
Pagina 29
... give out a radiation 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 ...
... give out a radiation 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 ...
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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