born rigidity

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|quantum physics}} A concept in [[special relativity]] that corresponds to the [[rigid body]] of [[nonrelativistic]] [[classical mechanics]]. It is satisfied if the [[orthogonal]] [[spacetime]] [[distance]] between infinitesimally separated [[curve]]s or [[world line]]s is [[constant]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.