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 98
... particles , are electrons - the atoms of negative electricity divorced from matter , recog- nised as such by Sir J. J. Thomson in 1897 , but previously well - known in the phenomena of the Crookes ' tube . They travel at a speed varying ...
... particles , are electrons - the atoms of negative electricity divorced from matter , recog- nised as such by Sir J. J. Thomson in 1897 , but previously well - known in the phenomena of the Crookes ' tube . They travel at a speed varying ...
Página 100
... a second or less . The atom of uranium expels 7 a- and 5 B - particles , in twelve successive changes , one particle per atom at each change . The atom of thorium expels 6 a- and 3 ß - particles . The B - particles are atoms of electricity ...
... a second or less . The atom of uranium expels 7 a- and 5 B - particles , in twelve successive changes , one particle per atom at each change . The atom of thorium expels 6 a- and 3 ß - particles . The B - particles are atoms of electricity ...
Página 101
... the expulsion of an a - particle ought to lower the atomic weight of the element expelling it by 4 units , 4 being the atomic weight of helium . In its transformation into radium , uranium P expels 3 a - particles . The atomic weight of.
... the expulsion of an a - particle ought to lower the atomic weight of the element expelling it by 4 units , 4 being the atomic weight of helium . In its transformation into radium , uranium P expels 3 a - particles . The atomic weight of.
Página 102
Aberdeen Addresses Frederick Soddy. expels 3 a - particles . The atomic weight of uranium is 238 , and that found by ... particle , or the B - particle , from an atom leaves a new atom with properties different from the parent , but ...
Aberdeen Addresses Frederick Soddy. expels 3 a - particles . The atomic weight of uranium is 238 , and that found by ... particle , or the B - particle , from an atom leaves a new atom with properties different from the parent , but ...
Página 103
... of the nature of matter than even the surprising discoveries of the genesis of one element out of another . The present theory of atomic structure is due to Rutherford , and is based on experiments on the course followed by an a - particle ...
... of the nature of matter than even the surprising discoveries of the genesis of one element out of another . The present theory of atomic structure is due to Rutherford , and is based on experiments on the course followed by an a - particle ...
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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 inanimate world 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 separated 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 wealth whole
Pasajes populares
Página 170 - Flower in the crannied wall, I pluck you out of the crannies, I hold you here, root and all, in my hand, Little flower—but if I could understand What you are, root and all, and all in all, I should know what God and man is.
Página 55 - the sufferings of mankind except veracity of thought and action, and the resolute facing of the world as it is when the garment of make-believe with which pious hands have hidden its uglier features has been stripped off.
Página 218 - towards the improvement and expansion of the Universities of Scotland, in the Faculties of Science and Medicine; also for improving and extending the opportunities for scientific study and research, and for increasing the facilities for acquiring a knowledge of History, Economics, English Literature, and Modern Languages, and such other subjects cognate to a technical
Página 193 - From the same source must come the greatly increased public provision that the Labour Party will insist on being made for scientific investigation and original research, in every branch of knowledge, not to say also for the promotion of music, literature and fine arts, which have been under Capitalism so greatly neglected, and upon which, so the
Página 208 - of the net annual income shall be applied towards the improvement and expansion of the Universities of Scotland, in the Faculties of Science and Medicine; also for improving and extending the opportunities for scientific study and research, and for increasing the facilities for acquiring a knowledge of History, Economics, English Literature, and Modern Languages, and such other subjects cognate to a technical
Página 90 - Natural causes, as we know, are at work which tend to modify, if they do not at length destroy, all the arrangements and dimensions of the earth and the whole solar system. But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved out of their ruins, the molecules
Página 3 - Science is the great instrument of social change, all the greater because its object is not change but knowledge, and its silent appropriation of this dominant function, amid the din of political and religious strife, is the most vital of all the revolutions which have marked the development of modern civilisation."—AJ BALFOUR, Decadence, 1908. THE
Página 55 - in the conviction which has grown up with my growth and strengthened with my strength, that there is no alleviation to the sufferings of mankind except veracity of thought and
Página 193 - which have been under Capitalism so greatly neglected, and upon which, so the Labour Party holds, any real development of civilisation fundamentally depends. Society, like the individual, does not live by bread alone, does not exist
Página 176 - the establishment of a Faculty of Science in every university implies that of a corresponding number of Professorial Chairs, the incumbents of which need not be so burdened with teaching as to deprive them of ample leisure for original work.