In this video the JK experts remove the engine bolts from a Volkswagen in preparation to for removal of the engine.
Dark matter. Written By: Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 26.5 percent of the matter-energy composition of the universe; the rest is dark energy (73 percent) and âordinaryâ visible matter (0.5 percent).
The Matter of Whether itâs Hot or Cold Dark Matter. Since dark matter does not emit electromagnetic energy that we can detect (hence the name dark matter) its existence is surmised by the gravitational influence it has on baryonic matter - protons and neutrons, the matter of the stuff around us. For example: