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Kennelly-Heaviside layer
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Arthur E. Kennelly and Oliver Heaviside.
Noun
A layer of ionized gas occurring between roughly 90–150 km (56–93 mi) above the ground. It reflects medium-frequency radio waves, and thus enables them to be propagated beyond the horizon.
Synonyms
en E region
en Heaviside layer
en eponyms
en Atmosphere