The light bulb…
Picture taken at Thomas Edison National Historic Park in West Orange, New Jersey.
**On July 24, 1874 a Canadian patent was filed by a Toronto medical electrician named Henry Woodward and a colleague Mathew Evans. They built their lamps with different sizes and shapes of carbon rods held between electrodes in glass cylinders filled with nitrogen. Woodward and Evans attempted to commercialize their lamp, but were unsuccessful. They eventually sold their patent to Edison in 1879.
In 1878, Thomas Edison began serious research into developing a practical incandescent lamp and on October 14, 1878, Edison filed his first patent application for “Improvement In Electric Lights”. However, he continued to test several types of material for metal filaments to improve upon his original design and by Nov 4, 1879, he filed another U.S. patent for an electric lamp using “a carbon filament or strip coiled and connected … to platina contact wires.”
Although the patent described several ways of creating the carbon filament including using “cotton and linen thread, wood splints, papers coiled in various ways,” it was not until several months after the patent was granted that Edison and his team discovered that a carbonized bamboo filament could last over 1200 hours.
This discovery marked the beginning of commerically manufactured light bulbs and in 1880, Thomas Edison’s company, Edison Electric Light Company begain marketing its new product.
**information taken from ‘history of the light bulb’
Happy New Year to all…
After leaving the library (last stop in installment #2) we headed upstairs to the precision machinery floor..
Behind this wall below, in 1888, in a small room long since dismantled, Thomas Edison and W. K. L. Dickson created the first motion picture camera.
I think the electric light is probably the thing Thomas Edison is most famous for . Although he did not invent the first electric light, Edison made the first practical electric light bulb that could be manufactured and used in the home. He also invented other items that were needed to make the light bulb practical for use in homes including safety fuses and off/off switches for light sockets.
Our last stop was downstairs to the heavy machinery floor.
I myself have no idea what this sign means but that doesn’t mean you all don’t 🙂
I can’t imagine the noise level when all these machines were in use at the same time.
I really enjoyed learning about this incredible man.