Foco

Who invented the light bulb or bulb?


The focus was invented by American Thomas Alva Edison on October 21, 1879.

For two years working in his lab looking for a wire or filament throughwhich electricity flowed, to insert it into a glass tube that had no air.
Finally, with the tube and a carbon filament that came from a thread of cotton, manufacture a light bulb.

This bulb orlamp bulb was on for two days in Menlo Park (New Jersey).

Edison also invented a system in which multiple foci were lit at once.



History Focus

INTRODUCTION
Within the research fromthe past into the future there are ideas that revolutionize society between what we find the focus, or having different applications in today, since this was started by an attempt to Thomas Alva Edisonwho introduced in October, 1879 it was a very famous inventor and now its time.
But before this there was another inventor named Alexander Lodiguin Russian engineer Russian inventor used a carbonfilament.
Without thinking is evolved bulb for use in different places or situations from flashlights, headlights to get a large place.

HISTORY OF FOCUS
The incandescent light bulb comeswith the idea there was need for the dark lighting without thinking there was also started to give a used in other applications such as television or simple indicators of death in other cases.
Thusrevolutionize the world in different ways, there are different types of bulbs either an elongated or a droplet form for ease of use, also divided by power in a light energy expenditure measured inwatts.
These bulbs currently used in many places from appliances, homes, or on the street in order to give the application to address as appropriate.
The invention of the incandescent lamp isgenerally attributed to Thomas Alva Edison presented the October 21, 1879 a lamp practical and feasible, worn for 48 hours straight.













HISTORY

Between 1830 and 1840, experiments...