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动图告诉你 光速到底有多慢？ - 通信技术 - cnBeta.COM
source link: https://www.cnbeta.com/articles/tech/811381.htm
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我们知道，30万公里每秒的光速是宇宙内目前已知的最高速度，至少现有人类理论体系下它是不可跨越的。30万公里每秒看起来快得不可思议，但宇宙实在是太大了，光速还是太慢太慢。为了让大家直观地理解光速到底有多慢，NASA科学家JamesO'donoghue特意制作了一组动图，说实话看完真有一种无力的绝望感。
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