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http://www.aalf.org/wiki/index.php?title=User:LorineOaks475&action=history Revision history for this page on the wiki en MediaWiki 1.13.3 Tue, 03 Nov 2026 03:55:13 GMT http://www.aalf.org/wiki/index.php?title=User:LorineOaks475&diff=13734&oldid=prev <p>New page: The incandescent light bulb was invented and continued to progress from the early 1800s. Prior to this, simple candles and oil lamps, along with other simple lighting was utilized in every...</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, simple candles and oil lamps, along with other simple lighting was utilized in everyday life. The journey of the incandescent lamp began in 1809 when Humphrey Davy produced the first arc lamp by inducing current between two charcoal strips utilizing a high powered battery. This was followed up through to the 1880s, with various incandescent light bulbs being produced by different groups and people. All had exactly the same thought of creating a light bulb which contained an element having a high melting point, like platinum, inside an evacuated chamber. <br /> <br /> Various high melting point materials had been utilized to try to create a practical, cost effective incandescent lamp with a long life. The theory was, the higher the temperature, the brighter the light. Consequently the higher the melting point of the material, the more successfully 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 within an evacuated chamber resulting in a longer life span. Numerous people produced light bulbs in this way, however the struggle was to produce one which lasted for significant periods of time. The very first incandescent lamp which lasted a practical length of time was developed by Edison and Swan in 1879, which lasted about 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 greater the amount of heat that is lost and also the quicker the filament degrades, the less effective 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 starting to be operated in a lower temperate, however the brightness of the lamp also decreased.<br /> <br /> Within the early 1900s, the much more contemporary tungsten filament incandescent lightbulb was devised by William Coolidge and the General Electric Company. This is the light bulb we know nowadays used for indoor or [http://www.energysavinglightsdirect.co.uk/Outdoor-Lighting/ outdoor lighting]. This element really enhanced efficiency of light bulbs due to its strength, pliability, workability, high melting point and low evaporation rate. The high melting point of tungsten resulted in a very bright light, even though it continued to evaporate fairly quick. Numerous inert gases like nitrogen had been added to the 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 success in sustaining a greater temperature, thus sustaining a brighter light. Coiled filaments are continually utilized in incandescent lamps today.<br /> <br /> Incandescent light bulbs even now shed lots of heat, with only 4-6% of the energy being supplied to bulbs being converted to light, as much as 96% is wasted as heat. Consequently energy saving light bulbs, also referred to as compact fluorescent lamps (CFLs) were eventually produced. <br /> <br /> The original fluorescent lamp was invented in the late 1890s. Since, numerous companies and people have developed on this idea to produce practical fluorescent lamps which had been originally sold in 1938. The shape of the fluorescent lamp started as a lengthy fixture, which then progressed into circular and u-shaped lamps after which into the three-dimensional spiral (helical). Even though the helical lamp was developed in the 1970s, the style didn't go ahead, and was later copied by others in the mid 90s when is was sold commercially. Energy light bulbs had been introduced by big companies such as Philips and Osram in the 80s, which included the very first effective replacement for screw-in incandescent lamps with an integral ballast, and the initial CFL to consist of an electronic ballast.<br /> <br /> Original eco lamps frequently weredull and flickered as the technologies were still being developed. Nowadays they truly are a brand new generation. They're incredibly effective, saving as much as 80% of power, very bright and have a really long life span, lasting about 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 lights] has now come to an close, with all wattages soon to be banned within the United Kingdom, nevertheless the journey for energy saving light bulbs and LEDs is only just beginning !</div> Thu, 01 Mar 2012 15:07:18 GMT LorineOaks475 http://www.aalf.org/wiki/index.php?title=User_talk:LorineOaks475