Science and Life: Aberdeen AddressesThis work is a collection of addresses and articles written at Aberdeen University regarding the interaction between science and society. |
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Página 17
Whence arises such a stream still flowing in this world of ancient lineage , from a material extracted from minerals found in rocks , many of them coeval with the beginning of geological time ? Tracked to earth , the clue to the great ...
Whence arises such a stream still flowing in this world of ancient lineage , from a material extracted from minerals found in rocks , many of them coeval with the beginning of geological time ? Tracked to earth , the clue to the great ...
Página 19
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 condition for chemical examination .
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 condition for chemical examination .
Página 34
Curie in . a uranium - containing mineral , pitchblende . It possesses the outstanding property of emitting energy , in relatively large amount , and in new and surprising forms , spontaneously and continuously .
Curie in . a uranium - containing mineral , pitchblende . It possesses the outstanding property of emitting energy , in relatively large amount , and in new and surprising forms , spontaneously and continuously .
Página 90
Going back to the natural minerals in which uranium occurs , such as pitchblende , M. and Mme . Curie discovered therein several intensely . RADIUM 91 radioactive new elements in almost infinitesimal quantity , 90 THE EVOLUTION OF ...
Going back to the natural minerals in which uranium occurs , such as pitchblende , M. and Mme . Curie discovered therein several intensely . RADIUM 91 radioactive new elements in almost infinitesimal quantity , 90 THE EVOLUTION OF ...
Página 91
The radium is present in pitchblende in very minute quantity , not more than one part in five or ten millions of the mineral at most . Small as the quantity was , they succeeded in isolating the compounds of radium in the pure state ...
The radium is present in pitchblende in very minute quantity , not more than one part in five or ten millions of the mineral at most . Small as the quantity was , they succeeded in isolating the compounds of radium in the pure state ...
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a-particle actinium active ancient appear applied Arts atomic weight attempt become bismuth branch Carnegie cent century chemical chemical character chemistry complete conception concerned continuous course definite departments direct discovery elements energy existence external fact Faculty follow fundamental future give given hand hitherto human important inanimate individual interest isotopes knowledge known labour lead learning least less living mass material matter means mechanism methods million mind minerals nature occur once original past period philosophy physical position possible practical present problem processes progress pure quantity question radioactive radium regard remains result scientific separated spirit subjects successive teaching thorium thought tion to-day Trust truth ultimate universities uranium wealth whole
Información bibliográfica
| Título | Science and Life: Aberdeen Addresses |
| Autor | Frederick Soddy |
| Editor | J. Murray, 1920 |
| N.º de páginas | 229 páginas |
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