In article ,
ss wrote:
He has a 1st class honours degree in
mathematical physics but can hardly use a flippin screwdriver.

And doesn't know much about solar panels. The quoted output of this sort
is usually a peak one. The average often close to zero. Maybe even a
negative in practice.

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*Why does the sun lighten our hair, but darken our skin?

Dave Plowman London SW
To e-mail, change noise into sound.