The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 35
... metal cut into the shape shown in Fig . 4 and called the needle , suspended in four hollow quadrant- shaped metal pieces ( Fig . 3 ) , which 36 ON THE METHODS OF MEASURING CURRENTS THROUGH GASES.
... metal cut into the shape shown in Fig . 4 and called the needle , suspended in four hollow quadrant- shaped metal pieces ( Fig . 3 ) , which 36 ON THE METHODS OF MEASURING CURRENTS THROUGH GASES.
Pagina 35
Their Properties and Behaviour Walter Makower. :) . 101 shaped metal pieces ( Fig . 3 ) , which.
Their Properties and Behaviour Walter Makower. :) . 101 shaped metal pieces ( Fig . 3 ) , which.
Pagina 35
Their Properties and Behaviour Walter Makower. shaped metal pieces ( Fig . 3 ) , which are sup- ported on insulating pillars . In many of the older types of electrometers these pillars are of glass coated with shellac , but this insula ...
Their Properties and Behaviour Walter Makower. shaped metal pieces ( Fig . 3 ) , which are sup- ported on insulating pillars . In many of the older types of electrometers these pillars are of glass coated with shellac , but this insula ...
Pagina 43
... metal connected to earth . It is of the greatest importance to ob- serve this precaution , as otherwise the electro- meter receives charges by induction from any electrostatic charge near it or its connections and the measurements ...
... metal connected to earth . It is of the greatest importance to ob- serve this precaution , as otherwise the electro- meter receives charges by induction from any electrostatic charge near it or its connections and the measurements ...
Pagina 44
... pair of leaves is replaced by a single leaf and a small rigid plate of metal , and the deflection of the leaf from the plate measured . Such an in- strument is shown in Fig . 8. A is the 44 THE RADIOACTIVE SUBSTANCES.
... pair of leaves is replaced by a single leaf and a small rigid plate of metal , and the deflection of the leaf from the plate measured . Such an in- strument is shown in Fig . 8. A is the 44 THE RADIOACTIVE SUBSTANCES.
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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