Nature, Količina 80Sir Norman Lockyer Macmillan Journals Limited, 1909 |
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Zadetki 1–3 od 16
Stran 7
... thorium when examined through 0.64 cm . lead , which is most remarkable , con- sidering that it gives about six times more 6 radiation . Whereas they rays of thorium have the same value for the absorption coefficient as those of radium ...
... thorium when examined through 0.64 cm . lead , which is most remarkable , con- sidering that it gives about six times more 6 radiation . Whereas they rays of thorium have the same value for the absorption coefficient as those of radium ...
Stran 12
... thorium of science , the intensely radio - active product of thorium , giving a rays , first separated from the new Ceylon mineral thorianite , which consists mainly of thorium oxide , by Otto Hahn while working in Sir W. Ramsay's ...
... thorium of science , the intensely radio - active product of thorium , giving a rays , first separated from the new Ceylon mineral thorianite , which consists mainly of thorium oxide , by Otto Hahn while working in Sir W. Ramsay's ...
Stran
... thorium , Frederick Soddy , 12 Radium Radium Institutes , 45 ; on the a Rays from Radium B , Dr. Howard L. Bronson , 159 ; Production of Radium from Uranium , Frederick Soddy , 308 ; Pitch- blende from Trenwith Minc , Francis Fox , 349 ...
... thorium , Frederick Soddy , 12 Radium Radium Institutes , 45 ; on the a Rays from Radium B , Dr. Howard L. Bronson , 159 ; Production of Radium from Uranium , Frederick Soddy , 308 ; Pitch- blende from Trenwith Minc , Francis Fox , 349 ...
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KNOWLEDGE | 1 |
Crucibles Scrap Utensils Wire Foil Residues c | xvii |
and oil immersion obje tives all in brand new condition price 25 | xxvii |
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