 | 1876 - 156 Seiten
...the pith a push in the opposite direction, and as they are the same distance off they will neutralize each other, and the spot of light will not move. I...off. The lights are, therefore, in the proportion of 12s to 28s, or as 1 to 5.4. The gas-burner is, therefore, equal to about five and a half candles. In... | |
 | 1876 - 610 Seiten
...behind solution of sulphate of copper 6 „ „ „ alum plate 14 „ • A small gas-burner 113 „ These experiments show how conveniently and accurately...; thus in the last experiment the standard candle 48 inches off was balanced by a gas-flame 113 inches off. The lights were therefore in the proportion... | |
 | 1877 - 1132 Seiten
...the square of 17 is 2S9. Twice 144 is 288. The light of these candles, therefore, is as 288 to 2S9. They therefore balance each other as nearly as possible....; thus in the last experiment the standard candle 1 2 inches off is balanced by a gas-flame 28 inches off. The lights are therefore in the proportion... | |
 | 1876 - 628 Seiten
...candle behind solution of sulphate of copper 6 „ „ „ alum plate 14 „ A small gas-burner 113 „ These experiments show how conveniently and accurately...; thus in the last experiment the standard candle 48 inches off was balanced by a gas-flame 113 inches off. The lights were therefore in the proportion... | |
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Now the square of 12 is 144, and the square of 17 is 289. Twice 144 is 288. The light of these candles, therefore, is as 288 to 289. They therefore balance each other as nearly as possible. Similarly I can balance a gas-light against a candle. I have... 
