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The Centennial Light was originally a 60-watt bulb, but has since dimmed significantly and is now as bright as a 4-watt bulb. [7] [8] [9] The hand-blown, carbon-filament common light bulb was invented by Adolphe Chaillet, a French engineer who filed a patent for this socket technology. [10]
The world's longest-lasting light bulb is the Centennial Light located at 4550 East Avenue, Livermore, California. It is maintained by the Livermore-Pleasanton Fire Department . The fire department claims that the bulb is at least 124 years old (installed 1901) and has only been turned off a handful of times.
The Centennial Light is considered to be the longest-lasting incandescent lamp in the world. It is used as evidence of collusion among incandescent lamp manufacturers in the Phoebus cartel , one of whose aims was to limit the average lifespan of lightbulbs to 1000 hours.
Adolphe Alexandre Chaillet (July 15, 1867, in Paris – after 1914) was a French inventor in the field of electrical engineering.. Chaillet created the Centennial Light, which has been illuminating a fire station in Livermore, California, for over a century. [1]
The light survived when the opera house became the Palace Theater, and survived several power outages. It was put on its own circuit breaker "that was permanently set to 'on ' ". [ 3 ] The theater house was marked for demolition in 1977, and the light bulb went to the local home of a man.
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Modern 3D Lichtenberg figures or "electrical treeing" in a block of clear acrylic, created by irradiating the block with an electron beam.Actual size: 80 mm × 80 mm × 50 mm (3 in × 3 in × 2 in) Lichtenberg figures are generated by a sliding spark discharge on the flask with a mixture of gases.