Science and Life: Aberdeen AdressesE. P. Dutton, 1920 - 229 páginas |
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Página 101
... number of different minerals . On the other hand every cubic centimetre by volume of helium per gram of uranium in a ... atomic weight of the element expelling it by 4 units , 4 being the atomic weight of helium . In its transformation ...
... number of different minerals . On the other hand every cubic centimetre by volume of helium per gram of uranium in a ... atomic weight of the element expelling it by 4 units , 4 being the atomic weight of helium . In its transformation ...
Página 103
... atomic structure is due to Rutherford , and is based on experiments on the course followed by an a - particle when it ploughs its way through the atoms ... number of separate negative electrons , revolving in a system around it . This theory ...
... atomic structure is due to Rutherford , and is based on experiments on the course followed by an a - particle when it ploughs its way through the atoms ... number of separate negative electrons , revolving in a system around it . This theory ...
Página 104
... atomic number . It is the nett number of charges in the atomic nucleus , i.e. the difference between the separate positive and negative charges . Before the discovery of the radio - elements the following represented the last 14 places ...
... atomic number . It is the nett number of charges in the atomic nucleus , i.e. the difference between the separate positive and negative charges . Before the discovery of the radio - elements the following represented the last 14 places ...
Página 118
... number of atoms disintegrating per minute , whereas to the spectroscope at least 3.1018 atoms as a minimum must be present , 25,000 times as many atoms as there are human beings alive in the world , before any element can be so detected ...
... number of atoms disintegrating per minute , whereas to the spectroscope at least 3.1018 atoms as a minimum must be present , 25,000 times as many atoms as there are human beings alive in the world , before any element can be so detected ...
Página 122
... value of for a collection of atoms ( 1 ) only just produced and not in existence a short interval before , and ( 2 ) that have remained undisintegrated from an originally very much greater number , and each of which has been in ...
... value of for a collection of atoms ( 1 ) only just produced and not in existence a short interval before , and ( 2 ) that have remained undisintegrated from an originally very much greater number , and each of which has been in ...
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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.