因此，异向介质大爆炸模型中光的路径代表了一个粒子处于空间和时间之中的寿命，这就是物理学家称之为“世界线”的东西。
Therefore, to the big bang model different medium in the light path represents a particle in space and time, this is the life among physicists call "world line" things.
几年前，物理学家认识到，异向介质也可以模拟天文现象，如行星绕恒星，光线被黑洞捕获等。
A few years ago, physicists know that different to medium can also simulated astronomical phenomena, such as planets orbiting stars, light is black holes capture, etc.
简单的物理学定律揭示出，星际介质中的气尘复合体可以进化，先是演化为原恒星，接下去再演化为恒星。
Simple laws of physics suggest, that gas-dust complexes in the interstellar medium may evolve, first into protostars and subsequently into stars.
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