Black Crunch jams Universal cycle [Cosmology]

Nature Magazine ^ | 23 Decemeber 2002 | PHILIP BALL

[Quix]

QUTE

Curious--what will you say to the person in the mirror if and when even 15% of such proves to be true?

[Quix]

Thanks for yours.

Was doing it partly for my Dad who also has an interest in such things. I'm curious what might be built by homade tinkerers.

Have read and seen enough in my life to be convinced there's something to at last some of such technologies.

Thanks for your link.

[MacDorcha]

"An object rotating in space (the outer kind) is technically a perpetual-motion machine (an object in motion will remain in motion; an object at rest will remain at rest; until acted upon by an outside force). However, extracting energy from such an arrangement introduces one or more outside forces. "

then why would a universe slow down to crunch again? it IS losing energy if it's slowing down, otherwise, the Universe would only exoand, being "always in motion." planets arent perpetual motion machines anymore than glass is a solid, it's a very slow moving liquid.

[Junior]

The universe is not losing energy. The energy is being converted into a non-useable form (heat).

[MHGinTN]

And according to entropy, that energy is dissipating as the spacetime bubble expands, thus the energy has 'more into which' to spread. Could the action of black holes, as they suck space and time into their warping gravity holes, be responsible for a sort of 'rebounding' effect that is driving accelerated expansion for the field at large?