How do they do it - Lightblulbs
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Uploaded by gogreenwithglass on Dec 1, 2010
How do they do it - Lightblulbs, watch how lightbulbs are actually created.
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One error: The first practical incandescent lamps used carbon filaments, not tungsten. The coiled tungsten filament was not introduced until 1913. Tungsten filaments appeared a few years earlier, but their sintered design (drawing tungsten into wire was not yet possible) made them very fragile. Tantalum was also used for lamp filaments, but it could only be used on DC.
Also, this is an Osram factory, not Philips.
randacnam7321 1 month ago
Say goodbye to a wonderful invention!
Say hello to a pain in the butt flourescent nightmare!
sophiapuppy 3 months ago
Good review.
faiyaz786khan 11 months ago