Cans typically come with a black background highlighted by florescent colors.

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However, on closer examination, the new cells proliferating in the petri dish contained the florescent marker from the brain cells and the DNA from the embryonic stem cells.

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The illuminated celestial-meets-industrial scene of gold and aluminium leaf spheres and lines, modern by 1930s standards, had been obscured for decades by florescent lights that were modern by '60s standards.

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The LED lighting industry has emerged in recent years with the aim of replacing the more common incandescent, compact florescent, halogen and other types of indoor and outdoor lights for the commercial and residential space.

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Prof Sheila MacNeil, from Sheffield University, said the technology was based on two clever concepts - that it only reacts in the presence of life-threatening bacteria and that the florescent dye only shows up once the nanocapsules have burst.

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If you doubt this, just listen to the never-ending GOP complaints over the dangers of mercury escaping from the compact florescent light (CFL) bulbs the government will soon require us to use in place of the highly inefficient incandescent bulbs.

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Florescent is older technology.

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