Nature, Količina 19Sir Norman Lockyer Macmillan Journals Limited, 1878 |
Iz vsebine knjige
Zadetki 1–3 od 84
Stran 58
... wire of 720 miles in length , and has found it a A A Iron 8 India Rubber C Ivory D Platina E Carbon G Platinized Screw ف شدن apparatus ; and that several way stations could exchange business telephonically upon a wire which was being ...
... wire of 720 miles in length , and has found it a A A Iron 8 India Rubber C Ivory D Platina E Carbon G Platinized Screw ف شدن apparatus ; and that several way stations could exchange business telephonically upon a wire which was being ...
Stran 82
... wire through which an electric current is passing ? To ascertain this we will bore a hole through a card or a piece of glass , and pass a wire up through the hole . Then , joining the ends of the wire to the poles of a powerful battery ...
... wire through which an electric current is passing ? To ascertain this we will bore a hole through a card or a piece of glass , and pass a wire up through the hole . Then , joining the ends of the wire to the poles of a powerful battery ...
Stran 83
... wire round it and send a current through the wire . There must be some relation between the iron bar and the coils of wire : what is it ? Let us investigate this also by looking at the distribution of the lines of force within the coil ...
... wire round it and send a current through the wire . There must be some relation between the iron bar and the coils of wire : what is it ? Let us investigate this also by looking at the distribution of the lines of force within the coil ...
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