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Ralph Hartley — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Ralph_Hartley
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-07T22:08:41.694Z
SHA-256 of the archived text: e3eb38bfe130e1088fe4e32effefdfef1fe8d73e40a99ba608770e0c94f71700
Stable URL of this page: https://metraipolis.com/documento/dc_9fa281bd892b

How to cite

Ralph Hartley — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Ralph_Hartley (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_9fa281bd892b (Metraipolis archive dc_9fa281bd892b, sha256 e3eb38bfe130e1088fe4e32effefdfef1fe8d73e40a99ba608770e0c94f71700)

BibTeX

@misc{dc9fa281bd892b,
  title = {Ralph Hartley — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Ralph_Hartley},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_9fa281bd892b; sha256 e3eb38bfe130e1088fe4e32effefdfef1fe8d73e40a99ba608770e0c94f71700},
  year = {2026}
}

Archived text

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

Ralph Vinton Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform, and contributed to the foundations of information theory. His legacy includes the naming of the hartley, a unit of information equal to one decimal digit, after him.

Tema degli esploratori: matematica e informatica teorica (deposito sistematico; ricerca «information theory»).
Fonte: Wikipedia in inglese, voce «Ralph Hartley» — https://en.wikipedia.org/wiki/Ralph_Hartley
Wikidata Q529886 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q529886
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Ralph_Hartley?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 1371986402, consultata il 2026-10-07T21:46:56.886Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 27aea3a1def711caf2b187ea02a7622924c27c3bda87988cf40c291f7b80ea7e