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The Rise and Fall of the Tungsten Filament Lightbulb - MMTA
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Tungsten's Brilliant, Hidden History | American Scientist
Carbon Filament Incandescent Lamp | VWR
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How an Incandescent Light Bulb Works - Ideas & Advice | Lamps Plus
Incandescent light bulb - Wikipedia
The Incandescent Lamp
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How Incandescent Light Bulbs Work — 1000Bulbs.com Blog
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