The Antique Series of lamps features a carbon filament with simulated oil-rubbed glass The Antique Series of lamps features a carbon filament with simulated oil-rubbe d glass to produce a classic, old ...

Tungsten filament lamps are at a pressure equal to about 10,000 feet of altitude. It is very easy to pull much better vacuum than that, ... The bulb was twice as efficient as carbon filament.

Edison Light Bulb, 1879 Thomas Edison used this carbon-filament bulb in the first public demonstration of his most famous invention—the light bulb, the first practical electric incandescent lamp. The ...

His interests, however, were varied, and he decided In 1860 to make an electric light using a carbon filament inside an evacuated glass chamber. It was a rather primitive creation.

In Nov. 1879, Edison filed a patent for an electric lamp with a carbon filament, according to the National Archives. The patent listed several materials that might be used for the filament, ...

Theatrical lamps for example are run at great stress to get as much light out of them as possible and as a result, they may only last for perhaps a few hours. However, at the other extreme, please see ...

Edison carbon filament light bulbs from the early 1880s. Independently of Swan, in 1878 Thomas Edison also began experimenting with incandescent lighting, ...

Latimer created a light bulb with a more durable filament made of carbon. He sold the patent to the US Electric Co. in 1881, and a year later patented a process for efficiently manufacturing the ...

Finally, the lamp, capable though it proved of taking a definite place in the art of electric lighting, was found to be hardly even a serious competitor of the carbon filament lamp. Nature ...

Tungsten is way better than carbon as a filament material, and now you can find it in any metal-supply shop. It lasts longer, is less brittle, and glows with a cleaner, whiter light.

More than 140 years after Thomas Edison and his assistants conducted their first successful experiments with a carbon-filament lamp in a vacuum, the company he helped to found — General Electric ...

I FIND that a very convenient way of charging an ordinary gold-leaf electroscope is to rub the charging rod with the glass bulb of a glowing carbon filament lamp. The leaf system becomes ...