Re: is perpetual motion possible ?


"Kyle T. Jones" <pleaseemailme!@xxxxxxxxxxxxxx> wrote in message
news:g4o196$qa1$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
Rob wrote:

No laws of physics have been broken. So, where does the energy come
from?
The initial source of energy harvested by your small turbine is
predominately thermal (although partially tidal). Heat from the sun
creates wind, convection currents, etc. that keeps the water mixed.

Exactly. A somewhat different take on solar power, though. Well spotted.


I really, really don't like this analysis. For one, you are ignoring at
least two other oceanic energy inputs. One is very trivial <meteorite
bombardment> at least currently, so I don't mind that. The other is not.

Hm. Corolis effect, possibly? Undersea thermal vents? Continental drift?
Whale farts?

The thing I dislike the most is that you decide to chase back through
various transformations, then arbitrarily stop at "solar power". Because
you like it more?

Well no, just because the energy comes from the Sun, so it's solar power. I
honestly don't see your issue here.

You could have as easily gone one more step back (where does the heat from
the sun originate) and said "Fusion/nuclear" power.

The heat from the Sun originates from the Sun. It is solar energy. The
mechanism by which the heat is generated in the Sun is indeed fusion, but
fusion is simply the process, not the source.

If you had gone another step, you would have actually come to something
interesting: That the energy coming from the sun is a result of the
gravitational force, which results in fusion, which results in EM
radiation, which is what you point to with "solar power".

No, it is only indirectly a result of gravity. If the Sun were a ball of
iron, it would not undergo fusion.

This is also a strong hint in terms of the other significant oceanic
energy input.

Tidal effects were mentioned, so if it isn't that then I evidently need a
bigger hint.

And reveals something significant, I think: how much energy in the
Universe can be traced back to the "weakest" of forces, gravity?

None. Gravity, or a gravitational field, does not of itself possess energy.

If you want to get into basics, the source of the energy - of solar power -
is the conversion of matter into energy according to the Einstein equation
during the various fusion processes occuring in the Sun. Gravity forces the
nucleons close enough together to react, the strong nuclear force does the
rest. However, neither gravity nor the strong force are the source of the
energy.

Cheers.

Ditto.


.

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