Associations to the word «Steradian»

Wiktionary

STERADIAN, 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

Dictionary definition

STERADIAN, noun. The unit of solid angle adopted under the Systeme International d'Unites.

Wise words

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
Winston Churchill