Nature, Volume 19Sir Norman Lockyer Macmillan Journals Limited, 1878 |
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Página 161
... light on heliotropism . The experiments were made in the light of a gas flame which burned under a constant pressure with a uniform intensity ( luminous power = 65 spermaceti candles ) . The unit for the measurement of the light ...
... light on heliotropism . The experiments were made in the light of a gas flame which burned under a constant pressure with a uniform intensity ( luminous power = 65 spermaceti candles ) . The unit for the measurement of the light ...
Página 261
... light - and a very poor light - thereby save that waste which the multiplication of the when compared with electricity . But is there any reason why this weakness should continue ? Is there any reason why gas should remain such an ...
... light - and a very poor light - thereby save that waste which the multiplication of the when compared with electricity . But is there any reason why this weakness should continue ? Is there any reason why gas should remain such an ...
Página 262
... light , but other experimenters are endeavouring to partially multiply the light . For instance , M. Rapieff , in the Times office , very successfully distributes six lights the office , and you , with about the office , and Ladd and Co ...
... light , but other experimenters are endeavouring to partially multiply the light . For instance , M. Rapieff , in the Times office , very successfully distributes six lights the office , and you , with about the office , and Ladd and Co ...
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