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Colophon

Colophon

Our look is the result of reader comments, our own experimentation, and feedback from distribution channels. Distinctive covers complement our distinctive approach to technical topics, breathing personality and life into potentially dry subjects.

The tool on the cover of Flash Hacks is a spotlight. The modern spotlight descends from an invention at the beginning of the nineteenth century by British army officer Thomas Drummond. Drummond produced "limelight" by burning a cylinder of calcium oxide (lime) in an oxyhydrogen flame. As the lime was oxidized by the flame, it produced a brilliant light that could be directed into a beam by a glass lens. Although its original use was to make survey stations more visible at night, limelight quickly became a part of stage lighting; its first appearances were in the Paris opera houses, and it was used widely throughout Europe and the United States until the 1890s.


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