The challenges on the site are incredibly varied and include everything from a multinational food company looking for a "Reduced Fat Chocolate-Flavored Compound Coating" to an electronics firm trying to design a solar-powered computer.

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These can be made to emit white light by coating the device with a phosphor compound that absorbs part of the blue light and re-emits it as yellow.

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If metals or non-metals are added to the plasma at this stage, the coating can be made to act like a metallic or non-metallic compound or anything in between.

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