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When word of the New Jersey women and their suits appeared in local newspapers, the women were told that the radium was safe and that employees in New Jersey were showing signs of viral infections. A co-founder of the Radium Luminous Materials Corporation (RLMC), George Willis lectured the women on radium and how it wasn't dangerous.
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.
The sign was designed in 1936 for the Nycander factory premises by artist Jim Minogue (who would go on to build the Nylex Clock in 1961), employed by Electric Signs, later called Whitewall Neon, then Claude Neon (after Georges Claude). As was usual practice, Electric Signs built and operated the sign, for which Nycander paid an annual rent.
Neon sign. The neon sign is an evolution of the earlier Geissler tube, [11] which is a sealed glass tube containing a "rarefied" gas (the gas pressure in the tube is well below atmospheric pressure). When a voltage is applied to electrodes inserted through the glass, an electrical glow discharge results.
An exit sign is constantly lit; fluorescent bulbs need to be changed more often than LEDs, although the absence of frequent on/off cycles extends the life of fluorescent lamps significantly. Generally, LEDs have a very long life, and may last for 10 years or more of continuous use, although their brightness may gradually diminish.
In fact, 90 percent of people diagnosed with the life-long condition are young women between the ages of 15 and 34.