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Limelight
refers to a system of lighting invented in 1825 by a British army officer
named Thomas Drummond. Drummond's
light was called "limelight" because it was produced by burning
a cylinder of lime (calcium oxide) in an oxyhydrogen flame.
As the lime was oxidized by the flame, it produced an intense, brilliant
light that could be directed into a beam by a glass lens.
Drummond's light was originally used to make distant survey stations more
visible at night, but later it was also used in
lighthouses and for stage lighting. In the theatre it was used as a spotlight
to direct the audience's attention to the most
important activities taking place on stage. Performers in this light were
said to be "in the limelight," and when the expression
passed into general usage, it meant anyone at the centre of public attention.
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