Science and Life: Aberdeen AddressesJ. Murray, 1920 - 229 páginas This work is a collection of addresses and articles written at Aberdeen University regarding the interaction between science and society. |
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Página 113
... separated they are regenerated at a perfectly definite and regular rate . One of these constituents , the emanation , is gaseous , and it can be separated from the thorium by no more elaborate means than by a puff of air . Certainly the ...
... separated they are regenerated at a perfectly definite and regular rate . One of these constituents , the emanation , is gaseous , and it can be separated from the thorium by no more elaborate means than by a puff of air . Certainly the ...
Página 124
... separated into different substances . Almost at once , however , there crept into the interpretation of this conception two fallacies , or two aspects of the same fallacy , implicit in all the later characterisations of the elements ...
... separated into different substances . Almost at once , however , there crept into the interpretation of this conception two fallacies , or two aspects of the same fallacy , implicit in all the later characterisations of the elements ...
Página 125
... separation from all other elements . To this Dalton added a new criterion , the magnitude of the weight of the atom of the element , and each element unique in chemical character ( as it happened ) proved also to possess a unique atomic ...
... separation from all other elements . To this Dalton added a new criterion , the magnitude of the weight of the atom of the element , and each element unique in chemical character ( as it happened ) proved also to possess a unique atomic ...
Página 128
... separated from them by chemical analysis , although sharply differentiated from them by the radioactive properties . Radiolead , or radium - D , cannot be separated from the lead which , being a product of uranium , accompanies it ...
... separated from them by chemical analysis , although sharply differentiated from them by the radioactive properties . Radiolead , or radium - D , cannot be separated from the lead which , being a product of uranium , accompanies it ...
Página 130
... separation . At my request , Fleck undertook in my laboratory a systematic chemical examination of all the members ... separated from that element . His researches were the means of finally unmasking the extreme simplicity and profound ...
... separation . At my request , Fleck undertook in my laboratory a systematic chemical examination of all the members ... separated from that element . His researches were the means of finally unmasking the extreme simplicity and profound ...
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Términos y frases comunes
a-particle Aberdeen actinium active ancient animal Arts atomic number atomic weight B-ray bismuth branch British Science Guild Carnegie Trust cent century chemical character chemical elements chemist chemistry classical coal commercial education conception creative definite direction discovery disintegration electricity electrons emanation energy evolved existence expelled experimental external Faculty FREDERICK SODDY fundamental H. H. Asquith helium hitherto human ideals inanimate universe investigation ionium isotopes J. J. Thomson knowledge known labour lead living mass material means mechanism ment million mind minerals modern nation nature original past Periodic Law periodic table philosophy physical pitchblende polonium practical present problem processes pure quantity radio-elements radioactive change radium radium-C recognised regard religion scientific study Scotland Soddy spectroscopic spectrum spirit study and research subjects successive teaching technical or commercial thallium thought tion to-day transmutation truth ultimate University of Aberdeen uranium and thorium wealth whole