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18:00 13 November 2009
Today's stories on newscientist.com, at a glance, including: why you shouldn't mix cocaine and pepper spray, a green makeover for piezoelectronics, and a joyride through the nanoworld
15:24 13 November 2009
Residents of Second Life have spent one billion hours in this digital world. Now its founder has plans to push the concept much further in a new virtual venture
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