In pheesics, spacetime (an aa space–time, space time or space–time continuum) is ony mathematical model that combines space an time intae a single interwoven continuum. The spacetime o oor universe is uisually interpretit frae a Euclidean space perspective, which regards space as consistin o three dimensions, an time as consistin o ane dimension (eften termed Minkowski space or the fowerth dimension). Bi combinin space an time intae a single manifold, pheesicists hae significantly simplified a lairge nummer o pheesical theories, as well as describit in a mair uniform way the wirkins o the universe at baith the supergalactic an subatomic levels.