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Early Incandescent Bulbs - part 1
Автор: Edison Tech Center
Загружено: 2010-09-01
Просмотров: 33337
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History of Electric Lighting: Early bulbs my Edison and others shown and explained by Rick DeLair at the Edison Tech Center. He shows early cellulose and bamboo filamants. The next step was the Mazda Bulb featured in part 2. The first incandescent lights made lighting practical. The arc light which preceded it was dangerous, loud, and needed it's carbons frequently changed. The incandescent bulb lasted a long time and could safely be housed in a building.
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