Heaviside layer


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Heaviside layer

[′hev·ē‚sīd ‚lā·ər]
(geophysics)

Heaviside layer

Heaviside layerclick for a larger image
A layer of ionized particles that surrounds the earth. The layer, also called the E layer, has ionization of around 106 free electrons. The layer is found at a height of around 60 to 90 miles (100-150 km), but its height varies according to the seasons and during the day and at night. The Heaviside layer reflects relatively long, low-frequency radio waves ranging from 100 kHz to 20 MHz. Also called the Kennelly-Heaviside layer and the E region of the atmosphere.
References in periodicals archive ?
The musical tells the story of a tribe of cats called the Jellicles and the night they make what is known as 'the Jellicle choice' and decide which cat will ascend to the Heaviside Layer and come back to a new life.
It tells the story of a tribe of cats called the Jellicles and the night they make what is known as 'the Jellicle choice', where they decide which cat will ascend to the Heaviside Layer and come back to a new life.
The cats all get together once a year to send one cat up to the heaviside layer, heaven, to be given a new life, as cats have nine lives.
The narrative sees the Jellicle cats gather in a scrapyard for their annual ball, where one lucky puss is chosen by leader of the pack Old Deuteronomy (here played by a wise and furry Nicholas Pound) to ascend to the Heaviside layer to be reborn.
Lewis' The Chronicles of Narnia") via a stair-climbing ritual that, for theater geeks, calls to mind Grizabella ascending on a tire to the Heaviside Layer in Andrew Lloyd Webber's "Cats." And in cameo appearances: the flying ship from Disney's "Peter Pan" and the fairy godmother's song from Disney's "Cinderella," among others.
The story revolves around a tribe of cats called the Jellicles and the night they make which is called as "the Jellicle choice" and decide which cat will ascend to the Heaviside Layer.
Old Deuteronomy, their wise and benevolent leader, announces which of them will go up to The Heaviside Layer and be reborn into a whole new life.
On one special night of the year, all Jellicle cats meet at the Jellicle Ball where Old Deuteronomy, their leader, makes the Jellicle choice and announces which of them will go up to the heaviside layer and be reborn into a whole new Jellicle life.
The story revolves around a tribe of cats called the Jellicles and the night they make what is known as "the Jellicle choice" and decide which cat will ascend to the Heaviside Layer and come back to a new life.
It's the night of the Jellicle Ball when the cats gather in an old scrapyard to choose who is to go up to the Heaviside layer and be re-born.