A Famous Scientist
URING a recent broadcast talk by Sir Oliver Lodge from the London station on the early days of electrie lighting he mentioned an incident of a attendant who, during an early experiment, hurried forward with a Tighted taper to re-ignite an electric lamp which had gone out. During at least one period in the development of a special type of electric lamp-the NE tera OT AR EPS |S ecm _ Se -----
Nernst lamp-it was, however. really necessary to employ the flame of a taper or match for the initial ignition of each lamp. This difficulty was due to. the fact that the special filament material employed was a non- conductor when cold. The trouble was subse+ quently overcome by the provision of an. electrically-heated coil, which: was automatically cut ont of cirenit when the filament was- heated, Tt then glowed with the intense brilliancy which . characterised that type of lamp. a ero a ee e°« .
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https://paperspast.natlib.govt.nz/periodicals/RADREC19291220.2.34
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Radio Record, Volume III, Issue 23, 20 December 1929, Page 10
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157A Famous Scientist Radio Record, Volume III, Issue 23, 20 December 1929, Page 10
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