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By afshin
#10845
A special kind of paper could be made to produce appropriate light when connected to low voltage electricity (6 volts). This kind of paper could be used to cover the walls (wall-paper) of apartments , especially places where there is not enough light.

Reward: one for my self
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By swimmer
#12295
thats agreat idea ! ;-D ;-D ;-D ;-D

it can be easely made by composite material containing ZNO , and CUO .
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