prostor-vreme

The three dimensional field of everyday experience, often as an abstracted and featureless container of things, as distinct from “place,” which typically identifies a space in ...

efemeridno vreme

Astronomy; General astronomy

Determined in principle from the sun's apparent annual motion, ET is the numerical measure of uniform time, which is the independent variable in the gravitational theory of the ...

univrzalno vreme

Astronomy; General astronomy

A measure of time used by astronomers; UT conforms (within a close approximation) to the mean daily (apparent) motion of the sun. UT is determined from observations of the diurnal ...

vreme poluraspada

Mathematics; Algebra

The length of time it takes half of an amount of radioactive material to decay.

teorija struna

Physics; Particle physics

A theory that seeks to incorporate a quantum theory of gravity into the Standard Model. In this theory, the fundamental constituents of matter are not particles, but strings. The ...

supernova

Physics; Particle physics

When a star exhausts its nuclear fuel, it under goes a catastrophic collapse. The resulting explosion is known as a supernova. It often is brighter than an entire galaxy.

super čestica

Physics; Particle physics

Supersymmetry predicts the existence of superpartners of the Standard Model particles. These new types of particles, the superparticles, would represent a new quantum dimension.

supersimetrija

Physics; Particle physics

A hypothetical symmetry relating particles of different spins. Under this symmetry, matter particles (spin one-half fermions) are related to force particles (spin-zero or spin-one ...

tamna materija

Physics; Particle physics

Astronomical measurements indicate that luminous matter, such as our sun, makes up only a small percentage of the total matter in the universe. The missing mass that makes up the ...

simetrija

Physics; Particle physics

Physicists use symmetries to restrict possible theories of fundamental particles. As an analogy, consider the human face. If you were able to see only the right side of a person's ...