Detail: Imitating Tungsten-thread from lightbulbs
"Only 20% av the lightbulbs total use of energy is converted to light. A whole 80% is converted to heat."
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Glød
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Glød
Illustrations for a book project on the original lightbulb that shines in the 2900 Kelvin degree; a red-orange colour spectrum. The book itself w Read More
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