Nature, Količina 19Sir Norman Lockyer Macmillan Journals Limited, 1878 |
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Zadetki 1–3 od 75
Stran 13
... carbon rheostat , lately illustrated in our pages , also depends upon the same principle , namely , the compression of a semi - conductor , such as carbon , increasing its conductivity , a diminution of pressure increasing the ...
... carbon rheostat , lately illustrated in our pages , also depends upon the same principle , namely , the compression of a semi - conductor , such as carbon , increasing its conductivity , a diminution of pressure increasing the ...
Stran 58
... Carbon G Platinized Screw ف شدن apparatus ; and that several way stations could exchange business telephonically upon a wire which was being worked , quadruplex , without disturbing the latter , and not- withstanding , also , the action ...
... Carbon G Platinized Screw ف شدن apparatus ; and that several way stations could exchange business telephonically upon a wire which was being worked , quadruplex , without disturbing the latter , and not- withstanding , also , the action ...
Stran 221
... carbon rods , the vertical one assumes a vibratory motion between its supports , which causes a very audible sound , especi - hath , " he did so , after having seen an eagle or eagles , and that madam , hath not so green , so quick , so ...
... carbon rods , the vertical one assumes a vibratory motion between its supports , which causes a very audible sound , especi - hath , " he did so , after having seen an eagle or eagles , and that madam , hath not so green , so quick , so ...
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