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And another thing ...
We are all familiar with the inverse square law, where
the signal strength diminishes with the square of distance. This only applies to
a point source, because the signal is distributed over a sphere.
If you have a linear source (such as the sound from a
busy road, for example) the level falls linearly, because the sound is
distributed over the surface of a cylinder. I assume the same holds for power
lines, meaning that the received signal strength at a distance from them would
be much greater than with a point source at the same distance.
We notice this particularly living in a quiet village -
you can usually hear the noise of the M20, which is two miles away
:-(
73
Hugh M0WYE
<END RANT>
----- Original Message -----
Sent: Friday, September 23, 2011 10:02
AM
Subject: Re: LF: Re: Re: Turbine
magnets
On 23 Sep 2011, at 10:42CEST, Chris wrote:
Hi all,
Off topic I know, but whatever about magnetic
effects, I agree with Mal when it comes to the appearance of these things.
They are gradually ruining the best countryside in the UK. Mind you, the
national grid pylons are not much better, would have been well worth
the extra cost to bury the cables in my opinion.
One of the IET's predecessor institutions reported it would
cost 7 to 22 times as much to install a grid link undergroud instead of using
pylons. By all means do it, but remember it will cost.
John F5VLF
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