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一艘以接近光速行进的潜水艇,它究竟是会浮在海里还是会最后沉下去?这是一个悖论,是由爱因斯坦相对论引出的著名的“潜水艇悖论”。根据爱因斯坦的相对论,物体的长度在运动
It is a paradox that a submarine that travels near the speed of light will float in the sea or will eventually sink. This is the famous “submarine paradox” that emerged from Einstein’s theory of relativity. According to Einstein’s theory of relativity, the length of an object is in motion