Re: Gravity and electricity

John Sefton wrote:
[snip]
> How much energy is released every moment
> by the million suns that make up a galaxy?

A lot, I'm sure. What's that got to do with
the topic of this thread?

> Whither to, that energy?
> Whence, that energy?

Mostly "out." That is, most of it goes away from
the galaxy. Again, so what?

> Why don't galaxies gradually dim and die as their
> stars die? Are new stars produced? Where do
> they come from? Where does the energy come
> from to replace the radiated starlight?

Stars do die. Stars are produced. Galaxies do age.

> If we don't know that, how can
> we know gravity?

Who says we don't know?

What is the connection between them?
Socks

.

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