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fluorescence |
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fluorescenceShort-lived luminescence (a glow not caused by high temperature). Phosphorescence lasts a little longer. Fluorescence is used in strip and other lighting, and was developed rapidly during World War II because it was a more efficient means of illumination than the incandescent lamp. Recently, small bulb-size fluorescence lamps have reached the market. It is claimed that, if widely used, their greater efficiency could reduce demand for electricity. Other important applications are in fluorescent screens for television and cathode-ray tubes. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Once those strandlike molecules had coated the carbon, the dots fluoresced when activated by colored lights, the researchers report in an upcoming Journal of the American Chemical Society. Purplish photos and glass vials of water documented the sole performance of Ignisfatuus, 1996-2000, that took place in a Baltimore garden: Arterial casts of a brain, heart, and lungs fluoresced to Ponselle's recorded voice according to the lunar cycle and a system of light sensors, microswitches, and peristaltic pumps. Taylor fluoresced as though she were some ultraviolet daylily, her limbs reaching like willowy stamens toward the sun. |
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