Scientists develop the 'un-printer', a machine that wipes documents clean

For people working in offices, the sound of the laser printer kicking into action will be a familiar one. A day won?t go by without the machine cranking into action, delivering sheet after sheet of warm, freshly printed paper. Of all those printed sheets, many will ? even before the working day is over ? end up in a box marked ?recycle?. That?s all well and good, but if only there was an easier and more environmentally friendly way of using the paper again without having to send it away to be pulped.

Source: http://news.yahoo.com/scientists-develop-un-printer-machine-wipes-documents-clean-061525544.html

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