nounmasculinepl: steradians / steradianos
esterradiano
1. A unit of solid angle measurement in the International System of Units (SI), representing the solid angle subtended by a unit area on a unit sphere
The full sphere has a solid angle of 4π steradians.
A esfera completa tem um ângulo sólido de 4π esterradianos.
2. The standard measure used in photometry and radiometry to quantify the extent of a cone of light or radiation
The light intensity is measured in candelas per steradian.
A intensidade da luz é medida em candelas por esterradiano.
Steradian is a specialized scientific term used primarily in physics, engineering, and astronomy curricula. It is not commonly used in everyday conversation in either Brazil or the USA, but rather in academic and professional contexts. The term is standardized internationally and used identically across English-speaking and Portuguese-speaking scientific communities.
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