A text-book on chemistry : for the use of schools and colleges . 124 DECOMPOSITION OF most brilliant that can be obtained by any artificial powerful batteries, the pieces of charcoal may be sep-Fig 109 arated several inches apart without the —^~^—, «ght ceasing, and then it moves from*? ^Wt one to the other pole in an arched form, Fig. 109, the convexity of the arc being upward. Thisform is due to the current of hot air which rises from theignited space between the poles, and the light may beblown out by the mouth, just in the same manner that weblow out a candle. But, in a
A text-book on chemistry : for the use of schools and colleges . 124 DECOMPOSITION OF most brilliant that can be obtained by any artificial powerful batteries, the pieces of charcoal may be sep-Fig 109 arated several inches apart without the —^~^—, «ght ceasing, and then it moves from*? ^Wt one to the other pole in an arched form, Fig. 109, the convexity of the arc being upward. Thisform is due to the current of hot air which rises from theignited space between the poles, and the light may beblown out by the mouth, just in the same manner that weblow out a candle. But, in a scientific point of view, by far the most inter-esting experiment to be made with the Voltaic battery isthe decomposition of water. Throughthe bottom of a glass vase, or dish, atthe point a b, Fig. 110, two platinumwires are introduced, water-tight; theypass into the vase, as a c, b d, parallelto each other, but not touching. Overeach of these wires a tube is to be in-verted ; the tube e over c, andy*over d,the vase and the tubes being previous-ly filled with water acidulated sligh
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Keywords: ., bookauthordraperjohnwilliam1811, bookcentury1800, bookdecade1840
