In this article, non-centralcollision, superball and Newton′s cradle are analyzed with the virtual experiment which is a useful way of collision′s analyzing and teaching.
Genesis hypotheses include a galaxy collision billions of years ago and the gravitational effect of a central bar that has since vanished.
对于这个星系起源有几种假设,其中包括数十亿年前的一次星系撞击以及重力对中间消失地带的影响。
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Rho meson gets quite much attention and is expected to carry information about the central fireball formed in the heavy ion collision, because its lifetime is shorter than that of the fireball.