Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 716
ame is changed to aslender cone, having at two points characteristics whichdiffer widely. There is a slender internal pencil, having afine blue color, which is known as the reducing flame, shownat a in Fig. 660, and an external flame, b, enveloping the bluepencil, having a more indefinite form and… … The Blowpipe Flame. of the internal or reducing flame immediately assumes aglobular form and has the brilliant surface of clean meltedmetal. The rationale of this is that at the extremity of theoxidizing flame there is intensely heated oxygen in condi-tion to unite with anything oxidable ; while at…
Physics · Lantern projection · Electric apparatus and appliances
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