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Free-fall time — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Free-fall_time
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-08T00:34:21.725Z
SHA-256 of the archived text: dec386a05b6d75d4b59b80306ddeaf4e845fd481098789d426ef5ba8444fee60
Stable URL of this page: https://metraipolis.com/documento/dc_eaeb43bf7ce8

How to cite

Free-fall time — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Free-fall_time (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_eaeb43bf7ce8 (Metraipolis archive dc_eaeb43bf7ce8, sha256 dec386a05b6d75d4b59b80306ddeaf4e845fd481098789d426ef5ba8444fee60)

BibTeX

@misc{dceaeb43bf7ce8,
  title = {Free-fall time — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Free-fall_time},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_eaeb43bf7ce8; sha256 dec386a05b6d75d4b59b80306ddeaf4e845fd481098789d426ef5ba8444fee60},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Free-fall_time. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The free-fall time is the characteristic time that would take a body to collapse under its own gravitational attraction, if no other forces existed to oppose the collapse. As such, it plays a fundamental role in setting the timescale for a wide variety of astrophysical processes—from star formation to helio-seismology to supernovae—in which gravity plays a dominant role.

Tema degli esploratori: terra, clima ed energia (deposito sistematico; ricerca «seismology»).
Fonte: Wikipedia in inglese, voce «Free-fall time» — https://en.wikipedia.org/wiki/Free-fall_time
Wikidata Q5499609 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q5499609
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Free-fall_time?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1353713609, consultata il 2026-10-08T00:12:09.337Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: b8dc860431b6f1bb6c0ec65bc555648c1dae944fbc13e12297c20b37e0802c3b