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thing is certain, at any rate, and that is, that in augmenting the potential and frequency we rapidly intensify the streams; and, though it may be very sanguine, it is surely not altogether hopeless to expect that we may succeed in producing a practical illuminant on these lines. We would then be simply using burners or flames, in which there would be no chemical process, no consumption of material.
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Fig. 8.—Effect Produced by Concentrating Streams.
but merely a transfer of energy, and which would, in all probability emit more light and less heat than ordinary flames.
The luminous intensity of the streams is, of course, con-
