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.
额外的收获是，“X”粒子还能解决另一个困扰已久的宇宙谜题：为什么宇宙中物质多于反物质？(物理学家称之为“重子不对称”。)
As an added bonus, an "x" particle could solve another perplexing cosmological mystery: why is there more matter than antimatter in the universe? (It's known as "baryon asymmetry" among physicists.)
实际应用物理学成果的，并不全是称为物理学家的那些人。这是因为，应用物理学原理的大多数人被称之为工程师。
Practical applications of physics are not all made by those labeled as physicists, for the majority of those who apply the principles of physics are called engineers.
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