【#中国光钟300亿年误差不超1秒#】近日，中国科学家取得光钟研制新进展。这台“超级钟表”，运行300亿年，误差不超过1秒，刷新人类计时极限！戳视频了解！

Researchers from the University of Science and Technology of China have achieved a breakthrough in optical clock technology, developing a strontium optical lattice clock with accuracy surpassing the 10⁻¹⁹ level, corresponding to less than one second of error over 30 billion years. http://t.cn/AXfbH6qp