III. On the effect of pressure of the surrounding gas on the temperature of the crater of an electric arc light. Preliminary notes of observations made at Daramona, Street, co. Westmeath
1895 ◽
Vol 58
(347-352)
◽
pp. 174-176
Of late years it has often been assumed that the temperature of the crater forming the positive pole of the electric arc is that of the boiling of carbon. The most modern determinations give this point as about 3300°—3500° C. Solar physicists have thought that the photosphere of the sun consists of a layer of clouds form ed of particles of solid carbon. As the temperature of these clouds is certainly not below 8000° C., it seems very difficult to explain how carbon can be boiling in the arc at 3500° and yet remain in the solid form in the sun at 8000°.
1897 ◽
Vol 6
(1)
◽
pp. 84-84
1897 ◽
Vol 60
(359-367)
◽
pp. 377-383
◽
1895 ◽
Vol 58
(347-352)
◽
pp. 24-38
◽
1895 ◽
Vol 57
(340-346)
◽
pp. 32-32
1986 ◽
Vol 26
(7)
◽
pp. 621-628
◽