Nature, Volume 19Sir Norman Lockyer Macmillan Journals Limited, 1879 |
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Página 11
... close of last year . In another article we shall trace the evolution and present achievements of the carbon telephone , an instrument which we believe is destined to have a great future . | tuning - forks maintained in vibration by the ...
... close of last year . In another article we shall trace the evolution and present achievements of the carbon telephone , an instrument which we believe is destined to have a great future . | tuning - forks maintained in vibration by the ...
Página 13
... close of last year . In another article we shall trace the evolution and present achievements of the carbon telephone , an instrument which we believe is destined to have a great future . | tuning - forks maintained in vibration by the ...
... close of last year . In another article we shall trace the evolution and present achievements of the carbon telephone , an instrument which we believe is destined to have a great future . | tuning - forks maintained in vibration by the ...
Página 18
... close of the exhibition . A sum of 700,000 francs has been voted out of the National subscription for covering the travelling expenses of 5,000 working men to the exhibition . A sum of from 47. to 6 % . , according to distance , has ...
... close of the exhibition . A sum of 700,000 francs has been voted out of the National subscription for covering the travelling expenses of 5,000 working men to the exhibition . A sum of from 47. to 6 % . , according to distance , has ...
Página 20
... close to a lighthouse on a hazy night must pass through the totally reflecting prisms placed above and have noticed the luminous rays passing through the air far above below the refracting part , which would then throw the rays the sea ...
... close to a lighthouse on a hazy night must pass through the totally reflecting prisms placed above and have noticed the luminous rays passing through the air far above below the refracting part , which would then throw the rays the sea ...
Página 24
... close conjunction of these two planets that occurred on September 26 and 27 last . With the advantage of a perfectly clear sky I had the two planets before me for several hours , so to speak , side by side in the field of the telescope ...
... close conjunction of these two planets that occurred on September 26 and 27 last . With the advantage of a perfectly clear sky I had the two planets before me for several hours , so to speak , side by side in the field of the telescope ...
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