point source (suomeksi)

Määritelmät:

(lb, en, sciences) a source of pollution, radiation, waves, fluid or other substance that has one specific location (and negligible physical extent, distinguishing a ''point source'' from other source geometries). In simulations they can often be approximated using mathematical point sources.
(lb, en, mathematics) the abstract concept of a singularity emitting a flux or flow. A source with infinitesimal dimensions in space.