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 16
... character are given out by radium , of various kinds and intense interest , and a thousand new phenomena make ... chemical reactions known . In a year it evolves about 150 times as much energy as would be evolved in the complete ...
... character are given out by radium , of various kinds and intense interest , and a thousand new phenomena make ... chemical reactions known . In a year it evolves about 150 times as much energy as would be evolved in the complete ...
Página 19
... chemical character , atomic weight and spectrum . For radium , though the proportion in which it exists in the richest uranium mineral is exceedingly minute , it is just possible to obtain enough to weigh and to prepare in a pure ...
... chemical character , atomic weight and spectrum . For radium , though the proportion in which it exists in the richest uranium mineral is exceedingly minute , it is just possible to obtain enough to weigh and to prepare in a pure ...
Página 91
... chemical character , spectrum , and atomic weight . They found its atomic weight to be 226 , which is next to that of uranium , 238 , and thorium , 232. This and its chemical character put it into a position in the periodic table in the ...
... chemical character , spectrum , and atomic weight . They found its atomic weight to be 226 , which is next to that of uranium , 238 , and thorium , 232. This and its chemical character put it into a position in the periodic table in the ...
Página 94
... element thorium , and ultimately all the radio - elements , are in the process of slow spontaneous change . Their radioactivity is due in large measure to minute quantities of impurities , of totally different chemical character from ...
... element thorium , and ultimately all the radio - elements , are in the process of slow spontaneous change . Their radioactivity is due in large measure to minute quantities of impurities , of totally different chemical character from ...
Página 95
... elements , until the final stable product is reached . In this process energy is evolved of the order of a ... chemical properties and position in the Periodic Table . It was one of very many startling predictions of a similar character ...
... elements , until the final stable product is reached . In this process energy is evolved of the order of a ... chemical properties and position in the Periodic Table . It was one of very many startling predictions of a similar character ...
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a-particle Aberdeen actinium active 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