In order to obtain a maximum, it would be
necessary to completely surround the porous vessel each time with
hydrogen, and afterward remove the jets to facilitate the access of
air. All the mechanical arrangements employed for obtaining such a
result have failed, because the friction introduced by the maneuvering
parts also introduces a resistance greater than the motor can
overcome. There is therefore a waste of energy due to the continuous
flow of hydrogen; but the apparatus, for all that, constitutes none
the less an original and interesting device.--_La Nature._
* * * * *
SOME RELATIONS OF HEAT TO VOLTAIC AND THERMO-ELECTRIC ACTION OF METALS
IN ELECTROLYTES.[1]
[Footnote 1: Read before the Royal Society, Nov., 1883.]
By G. GORE, F.R.S., LL.D.
The experiments described in this paper throw considerable light upon
the real cause of the voltaic current. The results of them are
contained in twenty tables; and by comparing them with each other, and
also by means of additional experiments, the following general
conclusions and chief facts were obtained.
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