柏林的一家医院发明了一套装置。把这套装置戴在身上后,人会发觉自己的关节变得僵硬,眼睛也不好使了,做每件事也变得艰难起来。一位参加体验这套装置的21岁的年轻人这样描述自己的感受:“当我迈开被紧束的双腿,感觉自己像宇航员要走向发射台。但这不是空间旅行,而是时间旅行。”他还表示,这套装置使人可以体验到老年人肢体的状况,让年轻人知道,自己老了四肢的感觉会是什么样。他说:“(这套装置)让人体验一位75岁老年人的感觉。” A hospital in Berlin invented a device. After wearing this device on the body, people will find their joints become stiff, the eyes are not so good, and everything becomes difficult to do. One young 21-year-old who participated in the installation describes his feelings in this way: “When I walked tight on my legs and felt like an astronaut going to the launch pad, it was not a space trip, but a Time travel. ”He also said that the device allows one to experience the condition of the elderly and to help young people to know what their old limbs will look like. He said: “(this device) to make people experience the feeling of a 75-year-old. ”