ergosphere

English

Etymology

From ergo- +‎ -sphere. Coined by Remo Ruffini and John Archibald Wheeler in 1971 in reference to the fact that it is theoretically possible to extract energy from the region.

Pronunciation

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Noun

ergosphere (plural ergospheres)

1. (physics) A region outside the event horizon of a rotating black hole in which space and time are distorted by shear forces.

Translations

region outside the event horizon of a black hole

• French: ergosphère f