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 17
... minerals found in rocks , many of them coeval with the beginning of geological time ? Tracked to earth , the clue to the great secret , for which a thousand telescopes might have swept the sky for ever and in vain , lay in a scrap of ...
... minerals found in rocks , many of them coeval with the beginning of geological time ? Tracked to earth , the clue to the great secret , for which a thousand telescopes might have swept the sky for ever and in vain , lay in a scrap of ...
Página 19
... mineral is exceedingly minute , it is just possible to obtain enough to weigh and to prepare in a pure condition for chemical examination . The most slowly changing members , on the other hand , are the parent - elements , uranium and ...
... mineral is exceedingly minute , it is just possible to obtain enough to weigh and to prepare in a pure condition for chemical examination . The most slowly changing members , on the other hand , are the parent - elements , uranium and ...
Página 34
... mineral , pitchblende . It possesses the outstanding property of emitting energy , in relatively large amount , and in new and surprising forms , spontaneously and continuously . All we have learned of this new property , radio ...
... mineral , pitchblende . It possesses the outstanding property of emitting energy , in relatively large amount , and in new and surprising forms , spontaneously and continuously . All we have learned of this new property , radio ...
Página 90
... Going back to the natural minerals in which uranium occurs , such as pitchblende , M. and Mme . Curie discovered therein several intensely RADIUM 91 radioactive new elements in almost infinitesimal quantity , 90 THE EVOLUTION OF MATTER.
... Going back to the natural minerals in which uranium occurs , such as pitchblende , M. and Mme . Curie discovered therein several intensely RADIUM 91 radioactive new elements in almost infinitesimal quantity , 90 THE EVOLUTION OF MATTER.
Página 91
... mineral at most . Small as the quantity was , they succeeded in isolating the com- pounds of radium in the pure state , and ultimately accumulated enough , not only for a detailed investi- gation of its extraordinary radioactivity , but ...
... mineral at most . Small as the quantity was , they succeeded in isolating the com- pounds of radium in the pure state , and ultimately accumulated enough , not only for a detailed investi- gation of its extraordinary radioactivity , but ...
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a-particle Aberdeen actinium active æsthetic 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