Slash Boxes

SoylentNews is people

SoylentNews is powered by your submissions, so send in your scoop. Only 12 submissions in the queue.
posted by martyb on Friday June 06 2014, @03:05PM   Printer-friendly
from the swirls-are-swell dept.

We started this month with a story about how Black Holes at Center of Galaxies Might Instead be Wormholes. Now, an article out on proposes Gravitational Fields Around Black Holes Might Eddy and Swirl.

From the article:

The team decided to study fast-spinning black holes, because a fluid-dynamics description of such holes hints that the spacetime around them is less viscous than the spacetime around other kinds of black holes. Low viscosity increases the chance of turbulence -- think of the way water is more swirly than molasses.

The team also decided to study non-linear perturbations of the black holes. Gravitational systems are rarely analyzed at this level of detail, as the equations are fiendishly complex. But, knowing that turbulence is fundamentally non-linear, the team decided a non-linear perturbation analysis was exactly what was called for.

They were stunned when their analysis showed that spacetime did become turbulent.

There is a related article, also on, spacetime could be like a very slippery superfluid which notes:

In this sense, general relativity would be the analogue to fluid hydrodynamics, which describes the behaviour of fluids at a macroscopic level but tells us nothing about the atoms/molecules that compose them. Likewise, according to some models, general relativity says nothing about the "atoms" that make up spacetime but describes the dynamics of spacetime as if it were a "classical" object. Spacetime would therefore be a phenomenon "emerging" from more fundamental constituents, just as water is what we perceive of the mass of H2O molecules that form it.

This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 2) by frojack on Saturday June 07 2014, @03:59AM

    by frojack (1554) on Saturday June 07 2014, @03:59AM (#52516) Journal

    I keep getting this vision of a black hole, like a flushing toilet, swirling swirling, then down you go, never to return. Then the black hole resets, waiting for its next meal.

    No, you are mistaken. I've always had this sig.
    Starting Score:    1  point
    Karma-Bonus Modifier   +1  

    Total Score:   2