Vampire Astronomy

Thunderbolts ^ | May 28, 2009 | Mel Acheson

[decimon]

A complex central network of filamentary structure spirals down to the center of the galaxy. Astronomers say it provides new insights into super-massive black holes. It is more likely that it demonstrates electrical effects.

[decimon]

Mathematically deficient ping.

Possible?

[RegulatorCountry]

The silver cord of the soul from Ecclesiastes springs to mind.

[JoeProBono]

[decimon]

Was that gratis, Mr. ProBono?

Thanks.

[JoeProBono]

[SunkenCiv]

Thanks decimon.

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[sig226]

I suppose it’s possible. I don’t know that much about Schwarzchild’s solution to offer an informed opinion. I can’t call it impossible, although it seems unlikely. Wouldn’t electrical discharges, even plasma, smit characteristic spectra?

[dr_lew]

The inevitability of gravitational collapse into a black hole is a simple consequence of E = mc².

Realizing that pressure, as force/area, represents an energy density, as energy/volume, we see that a certain pressure within a volume, R³, will give rise to a mass, M = pR³/c², which will create a gravitational pressure, GM²/R²

So, as soon as

GM²/R > Mc² or GM/c > R ,

we have reached a point where pressure created within the volume in order to resist collapse, creates enough mass to overwhelm itself by gravitation, and collapse accelerates.

This simple analysis gives the Schwarzschild radius except for a factor of 2.

[decimon]

Wouldn’t electrical discharges, even plasma, smit characteristic spectra?

They could smit for all I know. ;-)

[shibumi]

[decimon]

<...except for a factor of 2.

There's always that little catch.

[decimon]

Can she suck in a galaxy?

[shibumi]

Galaxies, fenceposts, doorknobs, trailer hitches.....

[JoeProBono]

[shibumi]

[Bratch]

[dr_lew]

It’s no “catch” at all. The back-of-the-envelope analysis ignores “factors of order unity” due to integrals of variable quantities and geometry. It says that, whatever the details, it’s got to come out close to this. A factor of 2 is pretty close, and in fact amazingly close to my way of thinking.

The key point is that gravity will overcome any resistant force whatsoever, and this is evident from the basics of Einstein’s theory. Picking over Schwarzschild’s solution is not going to change anything.

[Swordmaker]

Electric Universe Ping!

If you want on or off the Electric Universe Ping List, Freepmail me.

[sig226]

We better stop talking openly about smiting. We might get in trouble. ;)