Science Source December 28, 2009 DVD
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    Making print for private purpose, storage in computer memory, no distribution rights.

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    Strictly for editorial, single use, inside of newspaper, magazine, book (including digital version), one edition, one single country. Not for resale.

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LED and incandescent bulb. A light-emitting diode (LED) is based on a forward-biased semiconductor heterojunction. The price point for recently-developed high-power white LEDs is approaching consumer levels. They are beginning to be used for lighting and illumination applications (called solid-state lighting). Compared to conventional incandescent light bulbs, LEDs are much more efficient, durable, and have longer lifetime. Solid-state lighting is expected to eventually replace conventional incandescent and even fluorescent light bulbs.
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Science Source December 28, 2009 DVD
2011-03-20
EAST NEWS
Science Source
GIPhotoStock
bp0664
0,61MB
25cm x 38cm by 300dpi
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