Photo credit: n/a.
Source: Everybody's Magazine, v. 5, no. 26 (October 1901) p. 392.
were displayed overhead in the Westinghouse Section of the Electricity
Building. The lighting filament was made of lime-like minerals that, when
heated by electric current, gave off a "the most dazzling white light."
The fifty-candle Nernst lamp was three times brighter than the normal
incandescent lamp of the period, and consumed half the energy.
See also, "High-candlepower Nernst Lamps"
to New Technologies at the Turn of the Century