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Show Smallest Electric Motor. Tho smallest electric motor In tho world hns been built by n watchmaker whoso work has trolned him to handlo delicate machinery with tho exquisite caro required In mnklng a motor that moves with all the regularity of a big machine, and yet Is so small thnt Its owner wenrs It as a scarf-pin. Viewed from a llttlo distance, tho article has the appearance of a very valuablo and rather curiously-designed pin. It is only when standing near to It that Its nnturo can bo discovered. Tho first thing to ntlract attention Is tho buzzing of tho machine, which, by means of a current obtained from a small battery carried In tho vest pocket, pock-et, is kept In operation nt a high rate of speed, with a nolso llko a beo buzzing. |