In dictionaries:
Public sphere
The public sphere is an area in social life where individuals can come together to freely discuss and identify societal problems, and through that discussion influence political action.
political sphere
Arena for governmental and public activities.
celestial sphere
Imaginary sphere enclosing Earth, stars.
unit sphere
Sphere of radius one centered.
coordination sphere
In coordination chemistry, the first coordination sphere refers to the array of molecules and ions (the ligands) directly attached to the central metal atom.
Integrating sphere
An integrating sphere (also known as an Ulbricht sphere) is an optical component consisting of a hollow spherical cavity with its interior covered with a diffuse white reflective coating, with small holes for entrance and exit ports.
armillary sphere
Ancient astronomical device modeling cosmos.
ewald sphere
interaction sphere
sphere packing
(mathematics) The arranging of non-overlapping spheres in space
crystalline sphere
Transparent celestial globe; ancient cosmology.
Riemann sphere
Extended complex plane with infinity.
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