steradian

IPA: stɛrˈeɪdiʌn

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 r². Symbol: sr
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Examples of "steradian" in Sentences

  • Lumens per steradian and all than.
  • A steradian can also be called a squared radian.
  • A steradian can also be called a 'squared radian'.
  • A steradian can also be called a squared radian' .
  • The instrument had a field of view of one steradian.
  • The SI unit of solid angle measurement is the steradian.
  • k is ~5,000 particles per steradian per square meter per second
  • The numerical values of the solid angles are given in steradians.
  • A complete steradian sweep showed nothing the size of a spaceship out there.
  • (c) In photometry, the unit name steradian and the unit symbol sr are usually retained in expressions for derived units.
  • More formally, a candela is the intensity of a source that puts out yellow light at 1/683 watt per steradian of solid angle.
  • Flying by the seat of one’s pants, 4-pi steradian shots in the dark, gut checks and the like are all risky in foreign territory.
  • There were some say that this “hole,” which is just a cold spot which has “sharp boundaries” in steradian measure from the surrounding.
  • My follicular kingman homes for sale drowse fractiousness me this scrum to lender inauspiciously his defenseless panicle, his disorganisation to curb, and his steradian for noncausative to mustache.
  • Unit of luminous intensity candela The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.
  • An advantage of the moon over the Earth is that the moon subtends less than 0.25 square degree, whereas the Earth subtends a steradian or more, so scattered light and light potentially leaking around the shutter presents additional problems for the Earth.

Related Links

synonyms for steradiandescribing words for steradian
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