Science and Life: Aberdeen AdressesE. P. Dutton, 1920 - 229 páginas |
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Página 60
... cent . of all the added wealth that scientific men have , without acknowledgment and without reward , earned for the community were repaid , it would suffice them , beyond their wildest dreams of avarice , for labora- tories and ...
... cent . of all the added wealth that scientific men have , without acknowledgment and without reward , earned for the community were repaid , it would suffice them , beyond their wildest dreams of avarice , for labora- tories and ...
Página 97
... cent . of a given quantity of uranium would change - through ionium , radium and so on - into other elements . Yet , as has been mentioned , so delicate are our methods , that had radium been the first direct product of the change , an ...
... cent . of a given quantity of uranium would change - through ionium , radium and so on - into other elements . Yet , as has been mentioned , so delicate are our methods , that had radium been the first direct product of the change , an ...
Página 98
... cent . of the energy evolved in the change of an atom is emitted in the form of these a - particles . Much of Rutherford's finest work has been in connection with these a - particles . The early measurements of the mass of the atom ...
... cent . of the energy evolved in the change of an atom is emitted in the form of these a - particles . Much of Rutherford's finest work has been in connection with these a - particles . The early measurements of the mass of the atom ...
Página 101
... cent . of lead in terms of the quantity of uranium signifies the lapse of a period of 80,000,000 years . Errors of course are possible , if lead should have been an original constituent of the mineral , but these are minimised by taking ...
... cent . of lead in terms of the quantity of uranium signifies the lapse of a period of 80,000,000 years . Errors of course are possible , if lead should have been an original constituent of the mineral , but these are minimised by taking ...
Página 102
... cent . of lead . This definitely rules bismuth out . In the early months of 1913 a fundamental step forward was taken into our knowledge of the nature of matter which started from the discovery of the simple complete law of elementary ...
... cent . of lead . This definitely rules bismuth out . In the early months of 1913 a fundamental step forward was taken into our knowledge of the nature of matter which started from the discovery of the simple complete law of elementary ...
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Términos y frases comunes
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 direct 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 scientific study Scotland Soddy spectroscopic spectrum spirit study and research subjects teaching technical or commercial thallium thought tion to-day transmutation truth ultimate University of Aberdeen uranium and thorium uranium-X wealth whole