# effective radius

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## effective radius

[ə¦fek·tiv ′rād·ē·əs]
(astronomy)
The distance from the center of an external galaxy within which half its luminosity is included.
(ordnance)
The radius of a circle having its center at the center of impact of a nuclear weapon, and within which a specified dosage of radiation is equaled or exceeded within a given period of time.
References in classic literature ?
The theoretic effective radius of this rifle is three hundred miles, but the best they can do in actual service when equipped with their wireless finders and sighters is but a trifle over two hundred miles.
Increased the radius of explosion effect considering the actual effective radius
We also related trends in water cloud effective radius to trends in radiative forcing (ERFaci) to demonstrate how more accurate instrument calibration could reduce the uncertainty in aerosol indirect effect several decades sooner than operational instruments.
In the big bang theory, the ratio between the effective radius and the radius of the universe increases as the universe expands and will reach the unity at a point, which is the present time if the universe has mass [M.
With its effective radius of 30 feet, a single Cota charging station can simultaneously charge or power all the battery-operated devices in every room of an average home or office suite.
This strategy uses the large effective radius of the barrel cutter with a point milling contact style.
Once equipped with a collection of candidate boundary points, the algorithm fits a shape to the boundary points in an attempt to determine the droplet's effective radius or diameter.
h]), are used to calculate effective radius using (Jazar 2008):
In the singular, the specifying term implies an effective radius constituting half the distance of closest approach between like atoms deemed not covalently bonded.
The derivation of the formula which relates the angular velocity [omega], the angles [alpha] and [phi], as well as the unwinding velocity V and the effective radius of the conic package at the lift-off point c, is more involved as in the case of cylindrical package, since one cannot use a simple geometrical argument in the present case.
The APAM explodes directly above its target with a much tighter effective radius than flechettes.
Of course, if two of these dense stellar systems do merge, the resulting remnant will have a larger effective radius than either of the merging galaxies," Stockton told New Scientist.

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