Here is something heavy enough for anyone:

Originally posted by Suzianne
"power source for gravity"?

what in the world are you talking about?

Not sure what he means by this either. The whole universe is what
gives the overall curvature in space time and local masses causing
space time bends that simulates an actual force. Its only a space time
curve caused by mass concentrations. Even individual particles have
their own tiny gravitational space time curve.

Originally posted by Bowmann
Since we have samples of moon rock, we know it isn't. Not only that, we wouldn't have had any reason to suppose it were made of cheese, given there was no evidence to suggest this in the first place.

Now run out and play, that's a good girl.

Exactly. And saying the moon is made of green cheese is exactly like saying potential energy is rubbish.

Perhaps you should be the one to "run out and play"... I'm not the one making foolish statements.

Sonhouse, I've been meaning to ask you if you are familiar with the physicist James McCanney and his ideas that the solar system is "electrically active"? He also claims that Venus is a captured comet (yes, comet). I find a lot of what he says to be laughable, since it flies in the face of modern astronomy, but I was wondering if you had any opinion of him and his theories.

Originally posted by Suzianne
1) ...exactly like saying potential energy is rubbish.

2) ...since it flies in the face of modern astronomy...

1) Not at all. Potential energy causes some headaches among the scientific community. Whether the moon is cheese does not.

2) (addressed to Sonhouse) Then it MUST be wrong, mustn't it...?

Originally posted by Bowmann
1) Not at all. Potential energy causes some headaches among the scientific community. Whether the moon is cheese does not.

2) (addressed to Sonhouse) Then it MUST be wrong, mustn't it...?

Potential energy causes some headaches among the scientific community.

Really? Please elaborate. I don't believe you.

Originally posted by Bowmann
What do you suppose is the power source for gravity? Or is it "energy for free"?

No theory I know states that the force of gravity weakens as it expends energy.

Forces do not require power or energy. Why do you think they do?

Originally posted by sonhouse
Well in the larger context, you can get free energy from the expansion
of the universe:
Theoretically anyway, if you had a rope 20 million light years long and
the center was run around a spindle, say a few light years of rope
on this solar system sized spindle and on each end of the rope you
have a planet attached, the universe would drive the two pla ...[text shortened]... om the expansion itself. That could be
construed as breaking the law of conservation of energy.

That's interesting. It's out of my depth so I can't comment. If it's true, it's interesting. However, does that mean conservation of energy is broken by gravity?

Originally posted by AThousandYoung
That's interesting. It's out of my depth so I can't comment. If it's true, it's interesting. However, does that mean conservation of energy is broken by gravity?

Its all too true alright, The universe is expanding, Its the energy
that causes that expansion that would give you free energy with
the super long rope idea. Don't think anyone knows exactly where the energy that is causing the universe to expand comes or even
what exactly it is, considering they have shown the expansion of
the universe to have sped up starting about 6 billion years ago
But you put out a rope say 100,000,000 light years long and
the middle of the rope is wound around a huge bobbin, and
attach large masses to either end, you will in fact get 'free' energy.
It sure doesn't come from gravity, more like ANTI gravity, which is
what the expansion of the universe really is.
My personal theory of what caused the speed up in expansion
6 billion years ago is this, (my 'theory' does not need to invoke
extra forces): Our universe considered as a bubble in spacetime,
is not the only bubble. It is surrounded by dozens, maybe hundreds
of bubbles, island universes in their own right. My theory goes like
this: As our universe gets larger, it starts to feel the gravitation
of other bubbles which had a certain separation. 6 billion years
ago, our universe started feeling the gravitational attraction of
the other island universes and those other universes are what
causes our meaurable speedup in the expansion rate of our
universe, and our universe causes a corrosponding expansion
rate increase in the universes near us also, a two way street.
I think at some point in spacetime, the futrure, our universe and
the other univese will start to interpenatrate one another to
ends nobody can foresee at this time. So it boils down to
bubbles attracting bubbles.

Originally posted by sonhouse
So it boils down to bubbles attracting bubbles.

Full of hot air, no doubt.

Originally posted by Bowmann
Full of hot air, no doubt.

Yet another theory that claims some experimental success:
Its called "Scalar Tensor Vector Gravity"
Just another way to say it changes when interacting with variables,
in this case the concentration of mass. Here is the link:
http://www.newscientistspace.com/article.ns?id=dn8631

Originally posted by AThousandYoung
Forces do not require power or energy. Why do you think they do?

Are you serious?

Originally posted by sonhouse
Well in the larger context, you can get free energy from the expansion
of the universe:
Theoretically anyway, if you had a rope 20 million light years long and
the center was run around a spindle, say a few light years of rope
on this solar system sized spindle and on each end of the rope you
have a planet attached, the universe would drive the two pla ...[text shortened]... om the expansion itself. That could be
construed as breaking the law of conservation of energy.

well is everything in the univers is expanding. Then wouldnt the spindle also be expanding?

Originally posted by MikeBruce
well is everything in the univers is expanding. Then wouldnt the spindle also be expanding?

The expansion only can be felt across super long distances,
like millions of light years, so even if the spindle was a PLANET,
it would not feel much expansion, but it sure would rev up on the
free energy from the universal expansion.

Originally posted by sonhouse
The expansion only can be felt across super long distances,
like millions of light years

Long distances such as, for example, the length of your theoretical rope? Unless you can find some magical material that is immune to the alleged expansion of the universe from which to construct this long rope, you will not be getting any 'free' energy.

Originally posted by richjohnson
Long distances such as, for example, the length of your theoretical rope? Unless you can find some magical material that is immune to the alleged expansion of the universe from which to construct this long rope, you will not be getting any 'free' energy.

Nope, an ordinary rope would do it, I am talking about connecting
three points in space, one in the middle and two at extreme
distances, if the rope was prewound on a spindle, then it would
start to unwind the spindle as each end is connected to a massive
weight, the actual distance between objects gets longer so the rope
would unwind. It would be immune to the expansion, it would feel
the expansion but it would also be stretched, thats where unwinding
a spindle would generate free energy, at least till the rope fully
unwinds the spindle and runs out of rope. Then the rope keeps
stretching till it breaks. Talk about string theory!
Can you imagine 10 million light years of rope crashing down on
a planet? Say its 10 MM wide and weighs one milligram per millimeter,
how much mass would that represent?