"Invisible" <voi### [at] devnull> wrote in message 
news:4933c66f$1@news.povray.org...
>>> It's more that, in everyday life, there is no way of turning light into 
>>> either electricity
>>
>> Solar panels.
>
> And when do you *ever* see those in everyday life? ;-)

Come to Joburg.
We've got a number of places where solar panels and batteries are used to 
power lit billboards. There are plans to put solar panels at every set of 
traffic lights so that they work even in a power cut.

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