OCR Text |
Show WITH THE ELECTRICIANS. It is said that at last a satisfactory arc lamp for use on an incandescent circuit has been designed. An electric locomotive is in successful operation in one of the coal mines at Streator, 111. The mine has a heavy grade 1200 feet long, up which the coal has to be hauled. This is done by the locomotive without difficulty, 10 cars being taken at a time. A method of blasting by electricity hag been tried in Sweden with reported good results. The means consist of a volting arc produced betweon two carbon rods placed parallel. When the arc is moved close to the spot tb be blasted, an intense local heat is created, resulting in expansion that splits the rocks. When electricity is employed to charge a storage battery, only that portion of the current which is transformed into chemical energy ia utilized. The rest is dissipated by a sort of radiation. The battery, then, instead of being a place where electricity is laid away, is a place where chemicals are left by the current, with the expectation expecta-tion that they will produce a current when called upon for such service. There is said to be in Bavaria, Germany, a contrivance for catching moths attracted by the electric light and utilizing them. It is described as follows: An electric apparatus ap-paratus supplies a strong light which attracts at-tracts the insects and moths. A suction fan, worked by the electric current, draws them in when they approach the light and carries them into a small mill, also worked by the electric current, where they are ground up and mixed with flour, and thus converted into poultry food of excellent f quality. |