Each disc is covered in a transparent plastic coating (either blue, green, yellow or red) which lets daylight filter through.

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The pocket-sized, HD camcorder comes in silver and yellow and features a rubberized coating that makes it perfect for recording underwater.

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He uses hundreds of pounds of pure melted beeswax much like plaster, smoothly coating walls and ceilings until they almost resemble yellow marble except with a warm glow.

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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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