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Lead-free glass decor

Whether on baby bottles, beer mugs or perfume bottles, imprints on glass consist mainly of lead oxide. Fraunhofer researchers have developed printing inks for glass that do not contain any toxic elements. At the glasstec ...

dateOct 07, 2014 in Engineering
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Spinning CDs to clean sewage water

Audio CDs, all the rage in the '90s, seem increasingly obsolete in a world of MP3 files and iPods, leaving many music lovers with the question of what to do with their extensive compact disk collections. While you could turn ...

dateSep 23, 2013 in Nanophysics
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'Seeing' through paint

( -- When light passes through materials that we consider opaque, such as paint, biological tissue, fabric and paper, it is scattered in such a complex way that an image does not come through. "It is possible ...

dateMar 18, 2010 in General Physics feature
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