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Show rievlrle l.lfhia I rr Telvuhosaa. A member of the faculty of tlx Moscow Mos-cow imperial technlcul school, anxird' lug lo o dispatch from Nt. I'stsrsliurg, recently discovered Hist a microphone attached loan electric are lamp by wire will transmit sound through tha medium of another electric arc lamp. 11 pea ted experiments were made In which the two lumps were sepsrsted by a thick null. The inventor read In a low voice a lecture on hia dlaeovrry, and hla words, sp.iken Into lbs micro phone, were audible in the next room. |