1) Black hole term
Found on
https://www.crosswordclues.com/clue/ergosphere
The ergosphere is a region located outside a rotating black hole. Its name is derived from the Greek word ergon, which means `work”. It received this name because it is theoretically possible to extract energy and mass from the black hole in this region. The ergosphere has an oblate spheroidal shape that touches the event horizon at the poles .....
Found on
http://en.wikipedia.org/wiki/Ergosphere
An ellipsoidal region around a rotating Kerr black hole in which the hole's rotation drags the spacetime continuum round with it – a phenonemon known as the Lense-Thiring effect or frame dragging – so that frames of reference are not stationary with respect to the rest of the universe. T...
Found on
http://www.daviddarling.info/encyclopedia/E/ergosphere.html
The region around a rotating black hole, between the event horizon and the static limit, where rotational energy can be extracted from the black hole. See also: Black Hole, Event Horizon, Static Limit.
Found on
https://www.encyclo.co.uk/local/20687
No exact match found.
