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mobweb
on Dec 23, 2012
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Ten-year-old invents light-up crosswalks, IBM make...
In Switzerland we add small pearls to the paint when marking a zebra crossing. The pearls reflect the light from the cars.
http://www.tagesanzeiger.ch/panorama/vermischtes/SwarovskiPe...
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http://www.tagesanzeiger.ch/panorama/vermischtes/SwarovskiPe...