Nature, Količina 19Sir Norman Lockyer Macmillan Journals Limited, 1878 |
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Zadetki 1–3 od 78
Stran 129
... instrument has been graduated . We may now attempt an explana- The main bar is supported and turns on the pivot carried by the triangular weight ; its position with respect to the pivot is adjusted by sliding longitudinally in the box ...
... instrument has been graduated . We may now attempt an explana- The main bar is supported and turns on the pivot carried by the triangular weight ; its position with respect to the pivot is adjusted by sliding longitudinally in the box ...
Stran 404
... instrument will register automatically the number of hours of sunshine each day , as made by JOHN BROWNING for the ... instrument complete ... ... ... ... ... Illustrated Catalogue of Meteorological Instruments sent post free . JOHN ...
... instrument will register automatically the number of hours of sunshine each day , as made by JOHN BROWNING for the ... instrument complete ... ... ... ... ... Illustrated Catalogue of Meteorological Instruments sent post free . JOHN ...
Stran 472
... instrument for translating weak currents into strong ones , no less than 1,200 words per minute have been transmitted by its means , or five times as fast as it is possible for any person to read the message which comes through the ...
... instrument for translating weak currents into strong ones , no less than 1,200 words per minute have been transmitted by its means , or five times as fast as it is possible for any person to read the message which comes through the ...
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