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Centennial Bulb in fire station 6. Several reasons have been cited for the bulb's extensive lifespan. Its continuous operation has largely eliminated the stresses associated with turning a light bulb on and off, the act of which causes the temperature of the bulb to increase and decrease.
The more the light is turned on and off, the larger these cracks grow, until eventually the filament breaks at some point, in non-spectacular fashion, thus causing the light to burn out. [ citation needed ] Another reason for the longevity of bulbs is the size, quality and material of the filament.
The Palace Theater Light, also known as the Eternal Light, [1] is an incandescent light bulb recognized by the Guinness Book of World Records as being the second oldest continuously operating light bulb in the world behind the Centennial Light. It is kept at the Stockyards Museum in Fort Worth, Texas.
Chaillet's light-bulb design involved flattening the elliptically looped carbon filament coil set transversely to the longitudinal axis of the lamp, as well as flattening the end of the globe, or bulb at its tip end, parallel to the loops, so that the greatest intensity of light is thrown downward when the bulb is hung from the ceiling.
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The Light Bulb Conspiracy, also known as Pyramids of Waste, [2] is a 2010 documentary film written and directed by Cosima Dannoritzer. An international co-production of France and Spain, the documentary thematizes the planned obsolescence of industrial products for commercial reasons.
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