Light bulb

Light BulbFABIN RICARDO MORENO BUSTOS064121064What is a Light Bulb?Is an artefact that produce light with the heating of a wolfram wire specifically , this heating produce a light red-white through of the electrical current that produce an effect called Joule Effect today those lights bulbs are few efficient because the 85% is heat and the 15% is light. In Europe and other parts around the world in 2009 establishing a deadline for member states to stop the manufacture and market incandescent lamps. So today is common to see other types as LED or compact fluorescent lamp. According with the magazine Life , is one of the most important invents that produce enormous consequences in the century XIX and XX.

History. Who invented the incandescent lamp?, historians Robert Friedel and Paul Israel list 22 inventors of incandescent lamps prior to Joseph Swan and Thomas Edison. They conclude that Edison's version was able to outstrip the others because of a combination of two factors: an effective incandescent material, a higher vacuum than others were able to achieve.We can say then, that the bulb was invented by Thomas Alba Edison despite that in different parts of the world was created other versions and was patented other types , Edison has the credit for the three factors that we can read before and because he patented a trade version no as his colleagues that patented a laboratory version.

Some Properties, Evolution Of It And History Consequences.The carbon filaments was adopted by Joseph Swam a British chemist and physicist , he began working with carbonized paper filaments in an evacuated glass bulb but this bulb could produce light only by 13.5 hours. Despite of all , the Swams house was illuminated with these bulbs , other houses as the Lord Armstrong also was also one of the first houses to be illuminated by light bulbs In the other world , Thomas Alba Edison was investigated about the bulbs and how it could produce more light and also be more durability , the carbonized bamboo filament was discovered by Edisons team and for him , the advantage of it was the durability , it could work at least 1200 hours . Also he created a complete vacuum that allow to the bulb be more durable. J.P Morgan and Edison created an Alliance . Edison Electric was founded by Edison but after of many discussions because J.P Morgan lose a contract with the Niagara falls cataracts for to did an hydroelectric , Morgan dismiss to Edison of his our company and born the General Electric. The General Electric was created by J.P Morgan and adopt the AC ( Alternative Current) because Edison used the DC ( Direct Current.)On 13 December 1904, Hungarian Sndor Just and Croatian Franco Hanaman were granted a Hungarian patent (No. 34541) for a tungsten filament lamp that lasted longer and gave brighter light than the carbon filament. Tungsten filament lamps were first marketed by the Hungarian company Tungsram in 1904. This type is often called Tungsram-bulbs in many European countries.

Parts1 Outline of Glass bulb2 Low pressure inert gas (argon, nitrogen, krypton, xenon)3 Tungsten filament4 Contact wire (goes out of stem)5 Contact wire (goes into stem)6 Support wires (one end embedded in stem; conduct no current)7 Stem (glass mount)8 Contact wire (goes out of stem)9 Cap (sleeve)10 Insulation (vitrine)11 Electrical contact

Curiosities In the Firehouse Livermore (California) is an incandescent bulb lit wearing since 1901. This Bulb has a carbon filament.