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Electronic signs may be used indoors or outdoors. The display technologies are varied and changing quickly. Because of new display technologies, electronic signs are able to present more clear, colorful, and vivid images. Animated electronic signs gradually replace traditional static signs and increasingly take signage market share.
In the signage industry, neon signs are electric signs lighted by long luminous gas-discharge tubes that contain rarefied neon or other gases. They are the most common use for neon lighting , [ 1 ] which was first demonstrated in a modern form in December 1910 by Georges Claude at the Paris Motor Show . [ 2 ]
Detail view of an LED display with a matrix of red, green and blue diodes The 1,500-foot (460 m) long LED display on the Fremont Street Experience in Downtown Las Vegas, Nevada, is currently the largest in the world. A LED display is a flat panel display that uses an array of light-emitting diodes (LEDs) as pixels for a video display.
Additionally, he oversaw Harvard's management of its clocks. Willard presented two clocks to Harvard. One was a tall-case clock; the other was a wall-mounted regulator clock that was installed in a room near University Hall. A particular incident relates to Harvard's Great Orrery which was malfunctioning. Many craftsmen had unsuccessfully ...
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