. Machinery and processes of the industrial arts, and apparatus of the exact sciences. of their varying brightness to be dis-tinguished. But if a plane mirror placed by the side of the jets be rap-idly revolved around a vertical axis, each of the apparently single flameswill be resolved into a row of separate flames; and then the fact willbe manifest that all the separate images in each row fall into the darkintervals between the images of the other row. The appearance pre-sented by these flames is shown in the annexed figure. When one of Fig. 104. i 4 i Manometric Flames—tubes in unison. the
. Machinery and processes of the industrial arts, and apparatus of the exact sciences. of their varying brightness to be dis-tinguished. But if a plane mirror placed by the side of the jets be rap-idly revolved around a vertical axis, each of the apparently single flameswill be resolved into a row of separate flames; and then the fact willbe manifest that all the separate images in each row fall into the darkintervals between the images of the other row. The appearance pre-sented by these flames is shown in the annexed figure. When one of Fig. 104. i 4 i Manometric Flames—tubes in unison. the tubes sounds a harmonic of the other, the images arrange themselvesin a manner analogous; but the relations of the flame-images becomeless apparent as the ratios of the concords are less simple. By employ-ing only one flame, however, and bringing it into connection with themanometric chambers of both tubes at the same time, a compoundimage is produced, in which the mutual influence of the vibrationsmakes itself manifest. The figure here given is a representation of the Fig.
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Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectscientificappa
