Science and Life: Aberdeen AddressesJ. Murray, 1920 - 229 páginas |
Dentro del libro
Resultados 1-5 de 35
Página viii
... hitherto almost complete neglect by the intellectual world of the theme , for philosophies " of lighter and less solid wood . " I have included , as an appendix , some articles and reports bearing on certain definite charges which I ...
... hitherto almost complete neglect by the intellectual world of the theme , for philosophies " of lighter and less solid wood . " I have included , as an appendix , some articles and reports bearing on certain definite charges which I ...
Página 8
... hitherto , for any one country , an essentially unchanging physical environment . Emigration to other countries , as in the population of the Americas , produces corre- sponding marked changes of human nature , and the rapidity of these ...
... hitherto , for any one country , an essentially unchanging physical environment . Emigration to other countries , as in the population of the Americas , produces corre- sponding marked changes of human nature , and the rapidity of these ...
Página 14
... hitherto had come within the ken of science . No one had guessed the original source of the stream of energy which rejuvenates the universe , nor that it has its rise , not in the unfathomable immensities of space , but in the ...
... hitherto had come within the ken of science . No one had guessed the original source of the stream of energy which rejuvenates the universe , nor that it has its rise , not in the unfathomable immensities of space , but in the ...
Página 17
... hitherto has been the sole prerogative of the distant stars and sun . The solution of these problems followed the proof that the energy of radioactive substances was evolved in new kinds of change , which are distinguished from In the ...
... hitherto has been the sole prerogative of the distant stars and sun . The solution of these problems followed the proof that the energy of radioactive substances was evolved in new kinds of change , which are distinguished from In the ...
Página 34
... radioactive elements . We can at present only watch and follow them . We have not yet succeeded in interfering with them or quickening their rate . RADIOACTIVITY AND TRANSMUTATION 35 Hitherto in the chemical changes , 34 PHYSICAL FORCE.
... radioactive elements . We can at present only watch and follow them . We have not yet succeeded in interfering with them or quickening their rate . RADIOACTIVITY AND TRANSMUTATION 35 Hitherto in the chemical changes , 34 PHYSICAL FORCE.
Otras ediciones - Ver todo
Términos y frases comunes
a-particle actinium active ancient animal 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 complete 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 important inanimate universe investigation ionium isotopes J. J. Thomson knowledge known labour lead living material means mechanism ment million mind minerals modern nation nature original past Periodic Law periodic table philosophy physical pitchblende polonium practical present problem processes Professor progress pure quantity radio-elements radioactive change radium 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