Search results
Results from the WOW.Com Content Network
An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting . Lamps usually have a base made of ceramic , metal, glass, or plastic which secures the lamp in the socket of a light fixture , which is often called a "lamp" as well.
1835 James Bowman Lindsay demonstrates a light bulb based electric lighting system to the citizens of Dundee. 1841 Arc-lighting is used as experimental public lighting in Paris. 1853 Ignacy Łukasiewicz invents the modern kerosene lamp. 1856 glassblower Heinrich Geissler confines the electric arc in a Geissler tube.
1878 – Thomas Edison, following work on a "multiplex telegraph" system and the phonograph, invents an improved incandescent light bulb. This was not the first electric light bulb but the first commercially practical incandescent light. In 1879 he produces a high-resistance lamp in a very high vacuum; the lamp lasts hundreds of hours. While ...
Thomas Young: Wave theory of light, Vision and color theory: 1808: Atomic theory by John Dalton: 1816: English inventor Francis Ronalds built the first working electric telegraph. 1820: Danish physicist Hans Christian Ørsted accidentally discovered that an electric field creates a magnetic field. 1820
Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Electric power, like mechanical power, is the rate of doing work, measured in watts, and represented by the letter P. The term wattage is used colloquially to mean "electric power in watts."
On November 17, 1883, the Edison Electric Illuminating Company of Mount Carmel, Pennsylvania was founded. This was the first isolated electrical plant in the world, meaning that the entirety of Mount Carmel was powered by electricity. 38 arc lamps and 50 incandescent light bulbs were erected in the downtown business district. [8]
The Liverpool (Corporation) Electric Lighting Act 1879 (42 & 43 Vict. c. ccxiii) was the first electric lighting act to be enacted in the UK, it gave the Liverpool Corporation powers to light streets by electricity.
The company was the first in the United States specifically organized for the manufacture and sale of incandescent electric light bulbs. [17] In 1878, the company demonstrated an electric light that was the invention of Sawyer and Man. An exhibition was set up in New York City on October 29, 1878. [18]