Ever wonder about how that stone washed effect is achieved on blue jeans?聽 By washing with stones, that's how.聽 The fabric is placed into large industrial washing machines together with volcanic...
You may want them in your jeans, but you probably want to keep them away from your genes. They鈥檙e 鈥渘ano鈥� particles of titanium dioxide, about ten billionths of a meter in diameter that can exhibit...
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