Written descriptions and drawings of the Pharoe of Alexandria provide information about

500 WordsApr 23, 20192 Pages
Written descriptions and drawings of the Pharoe of Alexandria provide information about lighthouses, but the tower itself collapsed during an earthquake many centuries after its construction in the 3rd century BC by the Greeks. While the evidence provides insight into the exterior structure of these buildings, there are many gaps in evidence concerning less visible aspects. Locally available fuels will have included wood and probably coal to keep a fire going continuously during the night, and there is a large chimney leading to the top room at the Temple of Hercules. The example from Dover has been converted at some stage into a simple watchtower. Lighthouse keepers may have added combustible liquids to reduce the expenditure on fuel and…show more content…
South Foreland Lighthouse was the first tower to successfully use an electric light in 1875. The lighthouse's carbon arc lamps were powered by a steam-driven magneto. In 1870, the light at Wicklow head was fitted with Wigham's patent flashing system, which timed the gas supply by means of clockwork. When this mechanism was combined with a revolving lens in Rockabille Lighthouse, the world's first lighthouse with a group flashing characteristic was produced. The use of gas as iluminant became widely available with the invention of the Dalen Light by Swedish engineer, Gustave Dalen. In 1906, Dalén became the chief engineer at the Gas Accumulator Company.. Initially Dalén worked with Acetlyene, an extremely explosive Hydrocarbon gas. Dalén invented something called Agamassan, which is a substance used to absorb the gas allowing safe storage and hence commercial exploitation. Acetylene produced an ultra-bright white-light an as the fuel of choice in lighthouse illuminations. Dalén incorporated another invention into his light. This device allowed the light to operate only at night, conserving fuel, and extending their service life to over a year. The AGA lighthouse equipment worked without any type of electric supply and was thus extremely reliable. To a coastal area like Scandinavia, his mass-produced, robust, minimal maintenance lights were a significant boon to safety and livelihood. AGA Lighthouses covered the entire Panama Canal. The technology was the predominant form

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