Reply To: Could pB11 focus fusion device be modified to use thorium?
The Focus Fusion Society › Forums › Plasma Cosmology and BBNH › Model explaining the spiral arms without the need of dark energy › Reply To: Could pB11 focus fusion device be modified to use thorium?
No, I’m afraid you misunderstand the way orbital mechanics works. It’s not like a rigid clock hand. It’s objects independently falling toward the center of mass of the galaxy. The forward momentum of these objects causes them to orbit. Their speed however does not increase as their distance from the center of mass increases. Their speed decreases with the inverse square of the distance from the center. It’s a flattening out of this orbital velocity (rather than a decrease) which makes astronomers postulate dark matter. The only way to get away from this idea is to somehow modify the inverse square law of the force of gravity. This has been tried by astrophysicist’s, but results in even greater complexity than the dark matter idea. And if you enbrace the idea that the simpler idea is usually the correct one, then right now the dark matter idea has it.
I should have worded that differently. The speed of orbiting objects still decreases with increased distance from the apparent center of mass of galaxies. Just not as fast as predicted by Kepler.