from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A region outside the event horizon of a rotating black hole in which space and time are distorted by shear forces.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From ergo- + -sphere.


  • Things change though for the accretion disk material which enters the ergosphere of the black hole.

    Supermassive Black Holes Spinning Backwards Create Death Ray Jets? | Universe Today

  • But the black hole the enemy base was orbiting was actually a (literally) post-singularity civilization that absorbed all information that reached its ergosphere, and everything after a certain point in the battle happens in a computerized civilization.

    Superhero Nation: how to write superhero novels and comic books » Writing Tip of the Day: Make Your Story Intriguing, Not Cryptic

  • Within the ergosphere, space-time is dragged around faster than light — general relativity forbids material objects to travel faster than light (so does special relativity), but allows regions of space-time to move faster than light relative to other regions of space-time.

    the atomic uni-verse

  • The ergosphere of black hole is bounded by on the outside, an oblate spheroid, which coincides with the event horizon at the poles and is noticeably wider around the “equator”.

    the atomic uni-verse

  • The ergosphere is an oblate spheroid region outside of the event horizon, where objects cannot remain stationary.

    the atomic uni-verse

  • Objects and radiation can also escape from the ergosphere.

    the atomic uni-verse

  • Rotating black holes are surrounded by a region of spacetime in which it is impossible to stand still, called the ergosphere.

    the atomic uni-verse

  • Objects and radiation (including light) can stay in orbit within the ergosphere without falling to the center.

    the atomic uni-verse

  • The motion of galaxies by the outward motion of points of space is a form of frame dragging, similar to the Penrose-Kerr effect of particles moved inside the ergosphere of a rotating black hole.

    Does Space Expand?

  • You are in a region (ergosphere) where in order to remain stationary you have to effectively travel faster than light, which is impossible.

    Be vewwwwy vewwwwy quiet….


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  • So duration and space suffer shear

    Inside the whirling ergosphere.

    If the when and the where

    Are confounded there,

    Then how do you know the now and here?

    March 24, 2015

  • Also, the layer of Earth's atmosphere where everybody works.

    August 8, 2008

  • The conjectural region surrounding a black hole from which energy can theoretically escape.

    August 8, 2008