Wednesday 18 March 2015

The light bulb

Thomas Edison is usually credited with the invention of the light bulb, but the famous American inventor wasn't the only one who contributed to the development of this revolutionary technology. Many notable figures are also remembered for their work with electric batteries, lamps and the creation of the first incandescent bulbs. Edison create the light bulb in 1879.
light bulb, is a device that produces light from electricity.In addition to lighting a dark space, they can be used to show an electronic device is on, to direct traffic, for heat, and many other purposes.

They are different types of light bulbs: 
incandescent light bulb - the most common light bulb in the house until about 2003-2010
halogen lamp - a more efficient incandescent bulb
gas discharge lamp- a type of light bulb that includes the fluorescent light
light-emitting diodes - previously only used for low-power places, they are now able to be used as light bulbs in the house
electric arc lamp, the earliest kind, now rare except in big searchlights.