光速真的就是极限吗?

4년 전
in cn

刚才听了下李永乐老师讲解的关于“物体速度为什么不能超过光速”的视频,产生了一点小小的疑问。首先我也没有精通物理学知识,完全是从辩证怀疑的角度提出一点质疑。讲解中,为什么不能超过光速的直接原因指向了物体的质量会随着速度而变得无限大。于是,对物体质量变化的理论产生一点质疑。物体在加速情况下质量增加会不会仅仅是参照系下的质量增加,而其实该物质无论是静止还是运动,只要包含的物质没有发生变化(增加或减少),实际就没有发生变化。还有提出的方程式,也仅仅是在特定物理环境下的结论,以及推断出来的一些理论。而实际是否相符,没有真实印证,就不好说是否适用于整个宇宙。

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