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http://beta.aalf.org/wiki/index.php?action=history&feed=atom&title=WisemanAtchison254 WisemanAtchison254 - Revision history 2026-11-01T20:22:47Z Revision history for this page on the wiki MediaWiki 1.13.3 http://beta.aalf.org/wiki/index.php?title=WisemanAtchison254&diff=13742&oldid=prev LorineOaks475: New page: The incandescent light bulb was invented and continued to progress from the early 1800s. Prior to this, basic candles and oil lamps, and other similar lighting was utilized in everyday lif... 2012-03-01T15:17:12Z <p>New page: The incandescent light bulb was invented and continued to progress from the early 1800s. Prior to this, basic candles and oil lamps, and other similar lighting was utilized in everyday lif...</p> <p><b>New page</b></p><div>The incandescent light bulb was invented and continued to progress from the early 1800s. Prior to this, basic candles and oil lamps, and other similar lighting was utilized in everyday life. The journey of the incandescent lamp began in 1809 when Humphrey Davy created the very first arc lamp by inducing current between two charcoal strips using a high powered battery. This was followed up throughout the 1880s, with numerous incandescent light bulbs being produced by various groups and individuals. All had exactly the same idea of creating a light bulb which contained an element with a high melting point, such as platinum, inside an evacuated chamber. <br /> <br /> Numerous high melting point elements had been utilized to attempt to produce a practical, cost efficient incandescent lamp with a lengthy life. The theory was, the greater the temperature, the brighter the light. Consequently the greater the melting point of the material, the more effectively the lamp would work at high temperatures, resulting in the emission of a brighter ligh. The element would also have less gas particles to react with inside an evacuated chamber resulting in a longer life span. Many people produced light bulbs in this way, yet the struggle was to produce one which lasted for substantial periods of time. The first incandescent lamp which lasted a practical length of time was developed by Edison and Swan in 1879, which lasted around 13 and a half hours. However, in 1880 Edison produced a filament which lasted for up to 1200 hours - the best life-span by far.<br /> <br /> An incandescent lamps efficiency is focused upon reaching high filament temperatures, but with a minimal amount of heat loss and degrading. The more heat which is lost and also the quicker the filament degrades, the less efficient the light bulb is. Edison utilized carbon filaments within his early incandescent light bulbs as this has the highest melting temperature, having said that it evaporates at a rapid rate, resulting in a shorter life span. The life span was increased by the filament being operated in a lower temperate, however the brightness of the lamp also decreased.<br /> <br /> Within the early 1900s, the more contemporary tungsten filament incandescent lightbulb was devised by William Coolidge and the General Electric Company. This is the light bulb we know today used for indoor or [http://www.energysavinglightsdirect.co.uk/Outdoor-Lighting/ outdoor lights]. This element really enhanced efficiency of light bulbs because of its strength, pliability, workability, high melting point and low evaporation rate. The high melting point of tungsten resulted in a very bright light, although it continued to evaporate fairly quickly. Various inert gases like nitrogen had been added to light bulbs which decreased the rate of evaporation to improve filament life, however, this also affected the temperature of the filament, resulting in a dimmer light. Creating a coil from the filament was proven to have good results in maintaining a higher temperature, therefore sustaining a brighter light. Coiled filaments are continually utilized in incandescent lamps today.<br /> <br /> Incandescent light bulbs even now shed a lot of heat, with only 4-6% of the power being supplied to bulbs being converted to light, as much as 96% is wasted as heat. Therefore energy saving light bulbs, also known as compact fluorescent lamps (CFLs) were eventually produced. <br /> <br /> The original fluorescent lamp was invented within the late 1890s. Since that time, numerous companies and individuals have developed on this thought to produce practical fluorescent lamps which were originally sold in 1938. The shape of the fluorescent lamp began as a long fixture, which then progressed into circular and u-shaped lamps after which into the three-dimensional spiral (helical). Although the helical lamp was developed in the 1970s, the design didn't go ahead, and was later copied by others in the mid 90s when is was sold commercially. Energy light bulbs were introduced by big businesses like Philips and Osram in the 80s, which included the first effective replacement for screw-in incandescent lamps with an integral ballast, and the initial CFL to include an electronic ballast.<br /> <br /> Original eco lamps frequently ended updull and flickered as the technology were still being developed. Nowadays they really are a brand new generation. They're incredibly effective, saving up to 80% of power, extremely bright and have a really long life span, lasting around 8x longer than tradition incandescent lamps. <br /> <br /> The journey of incandescent light bulbs used for indoor or [http://www.energysavinglightsdirect.co.uk/Outdoor-Lighting/ garden lighting] has now come to an end, with all wattages soon to be banned within the United Kingdom, however the journey for energy saving light bulbs and LEDs is only just beginning !</div> LorineOaks475