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In 1878 Pavel Yablochkov improved the design by placing electrodes vertically and separating them with an insulating layer. This design was called “Yablochkov candles” and quickly became used all over the world. The Paris opera used to be illuminated by those “candles”. Los angeles dodgers beach parrots hawaiian shirt. The electric arc produces a fairly balanced and even bright spectrum of light, so it was soon popular and widely used. By 1884, major American cities were illuminated by more than 90,000 arc lamps. Incandescent bulbs. Most people attributed the invention of the incandescent light to Edison’s name. However, despite all the great merits in this field, he was not the inventor of the electric lamp.
The first incandescent was like a piece of jewelry or a work of art, both in complexity and cost. Long before Edison, in 1820, Warren De la Rue placed a platinum wire in a glass vase that was sucked in and transmitted electricity through it. It worked, but it was a platinum lamp. It is so expensive that widespread use is not possible.