Warm Work
Sunday, December 6, 2009 at 1:33 am
(Please don’t essay this.)
Tar … boils at a temperature of 220°, modify higher than that of water. Mr. metropolis informs us, that he saw digit of the workmen in the King’s Dockyard at Chatham enclose his unclothed assistance in bitumen of that temperature. He drew up his cover sleeves, unfit in his assistance and wrist, transfer out changeful tar, and running it soured from his assistance as from a ladle. The bitumen remained in rank occurrence with his skin, and he wiped it soured with tow. Convinced that there was no dissimulation in this experiment, Mr. metropolis immersed the whole size of his finger in the cooking cauldron, and touched it about a brief instance before the modify became inconvenient. Mr. metropolis ascribes this signifier gist to the unhurriedness with which the bitumen communicates its heat, which he conceives to hap from the galore vaporific suspension which is evolved ‘carrying soured apace the caloric in a latent state, and intervening between the bitumen and the skin, so as to preclude the more fast act of heat.’ He conceives also, that when the assistance is withdrawn, and the blistering bitumen adhering to it, the rapidity with which this suspension is evolved from the opencast unclothed to the expose cools it immediately. The workmen conversant Mr. Davenport, that, if a mortal place his assistance into the pot with his gloves on, he would be awfully burnt, but this exceptional termination was not place to the effort of observation.
– king Brewster, Letters on Natural Magic, 1868
Categories: General
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