Implosion (physics)
Scheme of explosion (top) and implosion (bottom) Implosja (Latin, im, in, ku, and (ex) plosio) - the opposite of the explosion due to the direction of the explosion, sudden collapse of matter in a closed area (in particular, collapse of the vessel's walls) under the influence of the prevailing in him vacuum. Implosion accompanies, for example, a bulb or kinescope break - in both cases fragments of breaking glass accelerate under the pressure difference between atmospheric pressure outside and vacuum (or thinning gas) inside; these crumbs hit the opposite walls of the vessel causing further cracking and also collide with each other, as a result of which they are ejected outside the implosion area. Implosion can also be the result of an explosion. As a result of the implosion of stars with a sufficiently large mass, black holes are created. wiki