clock paradox

Fetched 2026-10-26 (cache).

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Noun

1. {{lb|en|relativity|space flight}} The phenomenon in which two [[observer]]s who start together with identical clocks, follow different [[timeline]]s, and then [[rejoin]] can have different [[elapse]]d times on their clocks, especially if one travels at a [[relativistic]] speed.

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