"BAC" wrote in message
...

"Martin" wrote in message
...
On Mon, 18 Oct 2004 09:08:46 +0100, "Martin Sykes"
wrote:

" Jeanne Stockdale" wrote in
message
...
All energy sources on earth, past, present and future are
derived from
the
sun.

Actually, tidal energy comes from the moon's gravitational pull
and
geothermal energy comes from inside the earth, but everything
else -
coal,
oil, gas and wind is driven by the sun.

and nuclear power?

Quite right, the sun is powered by nuclear fission, so it could be
argued
all the energy sources 'claimed' for the sun are in fact a form of
'nuclear
power'.

If only we humans could attain the holy grail of controllable
fission power
generation, cutting out the middleman :-)

Fission power has been i use since 1945 or so. It is perfectly
capable of supplying our energy needs for the foreseeable future, if
we were to get cracking at building power plants as fast as possible.
Fusion power, if it ever comes, is actually going to have side
considerations similar to that of fusion power, namely, what to do
with the ash.

Franz