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02-23-2010, 09:34 AM
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Join Date: Apr 2009
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DYK Scratch-and-sniff works by taking the aroma-generating chemical and encapsulating it in gelatin or plastic spheres that are a few microns in diameter. When you scratch the sticker, you rupture some of these spheres and release the smell.
Only in the agony of parting do we look into the depths of love. ~George Eliot
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