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n. Abbr. Jy
A unit of electromagnetic flux density often used in radio astronomy, equal to 10-26 watts per square meter per hertz.

[After Karl Jansky (1905-1950), American radio engineer.]


n, pl -skys
(Astronomy) a unit of flux density equal to 10–26 W m–2 Hz–1, used predominantly in radio and infrared astronomy. Symbol: Jy
[C20: named after K. G. Jansky]


(Biography) Karl Guthe 1905–50, US electrical engineer. He discovered a source of radio waves outside the solar system (1932) and pioneered radio astronomy
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References in periodicals archive ?
This is new ground for us, but that's where the trend is going, so we need to do it," affirmed Louis Janski, general manager of Fort Thompson Sporting Goods in Sherwood, Ark.
"Jack Janski" is always close at hand and his recent comments are typical of our long association: "We're watching you.
"You helped so much and when Y we think of my son's schooling we will always remember you xx Samantha Janski: "It was an absolute honour to have known you.
The motto: "be responsible for what you are selling and in which environment you operate" will be replaced by: "be responsible for the ones you employ" (Janski, 2010a).
Steve Janski, a former college assistant at the University of Arkansas and East Carolina University, has won 36 games in five seasons as a high school head coach.
Director Stefan Janski certainly rose to the challenge and Mark Heron's conducting skills kept this complex work on the move.
In Sherwood, Ark., Louis Janski paints a very different picture of the long-gun market.
Part granted/part refused: Miss H Janski, works to TPOs, 7 Vineyard, Gol-car.
Mitchell (6-2, 210) earlier had an offer from Arkansas State, and Mitchell projects as a linebacker by his high school coach, Steve Janski, a former graduate assistant at Arkansas.