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<p><b>New page</b></p><div>[[File:Limelight_diagram.svg|Limelight diagram|thumb]] '''Limelight''' is a type of stage lighting once widely used in theaters and [[concert hall]]s, originating in the 19th century. It was invented by Thomas Drummond in 1825 and became an essential part of theatrical productions before the advent of electric lighting. Limelight works by heating a piece of [[calcium oxide]], commonly known as quicklime, to a high temperature in a flame of [[hydrogen]] and [[oxygen]]. The process produces a bright white light, which was then directed onto the stage using a [[lens]].<br />
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== History ==<br />
The invention of limelight was a significant advancement in [[theater]] technology. Before its invention, theaters relied on gas lighting, which was dim and posed a high risk of fire. Limelight provided a brighter and safer alternative. It was first demonstrated in the [[Royal Institution of Great Britain]] by Thomas Drummond in 1826 and quickly gained popularity in theaters across Europe and America.<br />
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== Operation ==<br />
The operation of limelight involves directing a flame at a cylinder of calcium oxide. When heated, the calcium oxide produces an intense white light. The light source was placed in front of a [[parabolic reflector]] to focus the light onto a specific area of the stage. This method allowed for dramatic lighting effects and the highlighting of specific actors or scenes.<br />
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== Impact on Theater ==<br />
Limelight revolutionized stage lighting by providing a more versatile and powerful light source than previously available. It allowed for greater control over the atmosphere and mood of productions, contributing to the development of more sophisticated and visually dynamic theatrical performances. Limelight also enabled the extension of performance times into the evening, which had previously been limited by natural light.<br />
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== Decline ==<br />
The use of limelight began to decline with the introduction of electric lighting in the late 19th century. Electric lights were safer, more reliable, and offered even greater control over lighting effects. By the early 20th century, electric lighting had largely replaced limelight in theaters.<br />
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== Legacy ==<br />
Although no longer used, the term "limelight" has entered the English language to describe a position of public attention or prominence, stemming from the focus and attention the light literally provided on stage. The invention of limelight remains an important part of the history of theatrical technology, marking a significant step forward in the evolution of stage lighting.<br />
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[[Category:Theatre technology]]<br />
[[Category:Stage lighting]]<br />
[[Category:19th-century inventions]]<br />
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