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Curious phenomenon of heat
Curious Phenomenon,
40 We would
remark
that,
starting
etc.
from the mixtures
[Jour. Frank. Inst.,
which oontain
their volume or more of inert gas, the difference between the temperatures calculated by Bunsen and the limit which corresponds to a total combination, does not exceed one-tenth.’ The difference falls to 45” and even to 4’ for more diluted mixtures : such would be the interval between a total combination and a combination of one-half too near the limits of experimental error to only ; an interval authorize any conclusion whatever, and a fortiori the admission of a simple law of discontinuous numerical relations. But if these experiments give no other certain data relative to the degree, to the nature, or even to the existence of dissociation,” they appear, notwithstanding, to establish the possibility of producing temperatures really approaching 3000”.
Curious Phenomenon
of Heat,-M.
J. Olivier reports
the
following experiment : A square bar of steel, about 15 millimetres thick, and 70 to 80 mm. long, is grasped firmly by the operator, one hand being placed at the centre of the bar and the other at one end. The free extremity is pressed strongly against a rapidly revolving In a few minutes the rubbed extremity becomes hot, emory wheel. the hand at the centre of the bar feels no heat, but the hand at the remote extremity becomes so hot that the operator is obliged to loosen it. C.
Coloring Canned Vegetables
by Chlorophyle,-MM.
A.
Guillemare and F. Lecourt have experimented successfully with chlorophyle, as a substitute for the salts of copper in giving a green color to peas, beans, cucumbers, and other canned or pickled vegetables. The color thus obtained is said to be more natural than that which is given by copper, the vegetables are more wholesome, and the flavor is better on account of the absence of all astringent or metallic taste.-Comptes Rends+, April 9. C. * M. Bunsen of combustion calculation.
admits & = 67300 in place of 69000, but this change in the heat of carbonic oxide does not sensibly modify the results of the
u Cysnogen burnt in air at constant volume forms an exception. In fact, it is easy to prove, admitting the pressure (11 atmospheres) observed by M. Bunsen, that the product is not composed exclusively of carbonic oxide, oxygen and azote, but that it necessarily contains carbonic acid, the temperature of combustion being comprised between 2700° and 2100°.
40 We would
remark
that,
starting
etc.
from the mixtures
[Jour. Frank. Inst.,
which oontain
their volume or more of inert gas, the difference between the temperatures calculated by Bunsen and the limit which corresponds to a total combination, does not exceed one-tenth.’ The difference falls to 45” and even to 4’ for more diluted mixtures : such would be the interval between a total combination and a combination of one-half too near the limits of experimental error to only ; an interval authorize any conclusion whatever, and a fortiori the admission of a simple law of discontinuous numerical relations. But if these experiments give no other certain data relative to the degree, to the nature, or even to the existence of dissociation,” they appear, notwithstanding, to establish the possibility of producing temperatures really approaching 3000”.
Curious Phenomenon
of Heat,-M.
J. Olivier reports
the
following experiment : A square bar of steel, about 15 millimetres thick, and 70 to 80 mm. long, is grasped firmly by the operator, one hand being placed at the centre of the bar and the other at one end. The free extremity is pressed strongly against a rapidly revolving In a few minutes the rubbed extremity becomes hot, emory wheel. the hand at the centre of the bar feels no heat, but the hand at the remote extremity becomes so hot that the operator is obliged to loosen it. C.
Coloring Canned Vegetables
by Chlorophyle,-MM.
A.
Guillemare and F. Lecourt have experimented successfully with chlorophyle, as a substitute for the salts of copper in giving a green color to peas, beans, cucumbers, and other canned or pickled vegetables. The color thus obtained is said to be more natural than that which is given by copper, the vegetables are more wholesome, and the flavor is better on account of the absence of all astringent or metallic taste.-Comptes Rends+, April 9. C. * M. Bunsen of combustion calculation.
admits & = 67300 in place of 69000, but this change in the heat of carbonic oxide does not sensibly modify the results of the
u Cysnogen burnt in air at constant volume forms an exception. In fact, it is easy to prove, admitting the pressure (11 atmospheres) observed by M. Bunsen, that the product is not composed exclusively of carbonic oxide, oxygen and azote, but that it necessarily contains carbonic acid, the temperature of combustion being comprised between 2700° and 2100°.