Nature, Volume 19Sir Norman Lockyer Macmillan Journals Limited, 1878 |
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Página 57
... arrangement . But difficulties arose from the high resistance of the plumbago cylinder he first used . Ulti- mately he constructed a transmitter in which a thin slice or button of a semi - conducting substance was placed between two ...
... arrangement . But difficulties arose from the high resistance of the plumbago cylinder he first used . Ulti- mately he constructed a transmitter in which a thin slice or button of a semi - conducting substance was placed between two ...
Página 78
... arrangement for bringing them nearer together in propor- tion as they are consumed . Much ingenuity has been displayed by electricians in solving this problem , and the automatic contrivances invented by Staite , Duboscq , Fou- cault ...
... arrangement for bringing them nearer together in propor- tion as they are consumed . Much ingenuity has been displayed by electricians in solving this problem , and the automatic contrivances invented by Staite , Duboscq , Fou- cault ...
Página 562
... arrangement which consists in their turning negative surfaces towards the positive pole and positive surfaces towards the negative pole . If we con . ceive these molecules as electrically dipolar in the state of rest , they would be ...
... arrangement which consists in their turning negative surfaces towards the positive pole and positive surfaces towards the negative pole . If we con . ceive these molecules as electrically dipolar in the state of rest , they would be ...
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