Nature, Volume 100Sir Norman Lockyer Macmillan Journals Limited, 1917 |
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Página 115
... increase of hard- ness ( Brinell test ) . Although cubes of silver , copper , and aluminium showed a considerable increase of ball - hardness in these experiments , he decided that in no case were they appreciably deformed , and that ...
... increase of hard- ness ( Brinell test ) . Although cubes of silver , copper , and aluminium showed a considerable increase of ball - hardness in these experiments , he decided that in no case were they appreciably deformed , and that ...
Página 224
... increase of current , although the deviations of the ions and electrons tend to produce a decrease . This effect is uncertain in the case of small potential differences , but it becomes considerable when ionisa- tion by collision begins ...
... increase of current , although the deviations of the ions and electrons tend to produce a decrease . This effect is uncertain in the case of small potential differences , but it becomes considerable when ionisa- tion by collision begins ...
Página 423
... increase wheat production . The Corn Production Act will no doubt in- crease the area . To increase the crop per acre is , as Sir William Crookes suggests , a problem for the laboratory . But there are many possibilities beyond the ...
... increase wheat production . The Corn Production Act will no doubt in- crease the area . To increase the crop per acre is , as Sir William Crookes suggests , a problem for the laboratory . But there are many possibilities beyond the ...
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