"Chris Hogg" wrote in message
...
On Sat, 16 Aug 2014 08:33:04 +0100, "harryagain"
wrote:


"Chris Hogg" wrote in message
news
On Fri, 15 Aug 2014 17:16:57 +0100, "harryagain"
wrote:



Yes I can see you know nothing about horses.
Working horses need high energy food additionally to grass, ie grain or
these days "concentrates".
In days of yore,large areas of land were set aside for growing oats just
to
feed horses and oxen.
You don't get energy from nowhere.
http://en.wikipedia.org/wiki/Equine_...n#Concentrates

Grass Harry. All grains (wheat, barley, oats etc), they're all
grasses, or didn't you know that? Concentrates are made from them. So
why have all these green machines, the horses, disappeared, Harry?
It's because they've been replaced by infinitely more efficient
machines that burn fuels such as coal or oil.

Grains are the concentrated high energy part of grass.
But just as we do, horses need roughage.

Tractors are less work to maintain and more convenience.
Horses are lots of work (and vet's bills)
Also no neccessity to grow the foodstuff for horses.
Also more power in a smaller space.
Efficiency, not much in it.
The by product from horses is useful.

You make my point precisely, Harry. Despite the fact that the fuel
(grasses) can grow and set seed for free, so much intervention,
maintenance and support was necessary that horse-power was unable to
meet the needs of society a hundred years ago, and wouldn't be able to
do so today despite huge improvements in farming methods.

That situation is perfectly analogous to wind, solar and tidal power.
The energy sources may be free, but the effort and cost required
reliably to capture and utilise that energy make those sources totally
inappropriate for the needs of today's society. Like horse-power, they
will find applications in niche areas, but also like horse-power,
never in significant amounts.

They have far from disappeared and may return in numbers one day.

That sums you up completely, Harry. You live in a fantasy world.

You're the one in the fantansy world.
Thinking things will/can always go on as before.
A sign of old age/impending dementia.
Fortunately you are in a minority, most people see sense.

Renewable energy is the only one no-one can take away from us.
Nuclear is far too expensive, dangerous, it's use is totally irresponsible.