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Definition of Steradian
1. Noun. The unit of solid angle adopted under the Systeme International d'Unites.
Definition of Steradian
1. Noun. (geometry) In the International System of Units, the derived unit of solid angle; the solid angle subtended at the centre of a sphere of radius ''r'' by a portion of the surface of the sphere that has area ''r''2. Symbol: sr ¹
¹ Source: wiktionary.com
Definition of Steradian
1. [n -S]
Lexicographical Neighbors of Steradian
Literary usage of Steradian
Below you will find example usage of this term as found in modern and/or classical literature:
1. A Course in Electrical Engineering by Chester Laurens Dawes (1922)
"Unit Solid Angle or steradian.—In order to understand the fundamentals of ...
This angle is a unit solid angle, fisq.ft. sometimes called the steradian. ..."
2. The Elements of Geometry by George Bruce Halsted (1886)
"A steradian is the angle subtended at the center by that part of every sphere
equal to the square of its radius. 841. The space angle made by only two ..."
3. Metrical Geometry: An Elementary Treatise on Mensuration by George Bruce Halsted (1881)
"A steradian is .the angle subtended at the center by that part of every sphere
equal to the square of its radius. 68, To find the area of a lune. ..."
4. Transactions (1896)
"Suppose that by " bougie" is meant the current of light which streams from a
uniform standard candle through one " steradian," then the illumination ..."
5. Gaseous Electronics Conference Radio-Frequency Reference Cell: Reprint From edited by James K. Olthoff (1996)
"This multiplication by AA is necessary because the continuum emission of the
calibrated source is given in units such as watts per cm2 per steradian per nm, ..."
6. The Metric System: The International System of Units (SI) (1992)
"... the 18th CGPM its opinion as to the possibility of suppressing one of
them.11 CIPM, 1980 SI SI supplementary units (radian and steradian) (PV, 48, p. ..."
7. A Dictionary of Electrical Words, Terms and Phrases by Edwin James Houston (1903)
"Pyr-steradian.—(1) The flux of light corresponding to the luminous intensity of
one pyr extending over the solid angle of one steradian. ..."
Other Resources:
Asturian