孪生佯谬问题
许多人麻烦的双重悖论,因为框架的方式改变处理。在这种情况下,跳帧改变后对猎人约翰的时钟(9.6到20.4小时)是个问题。这里真的是没有问题。如果你想集成加速度使用不同惯性系中转身,这是可以做到的(相同的结果)。另一个常见的方法是通过想象别人在空间约翰当他到达他的转机点。这个人正走向猎人以同样的速度,约翰是旅行,所以不需要考虑约翰任何进一步的。关键的事实是,如果我们回到替代的框架和猎人看了时钟,它将显示一些替代品时记录的时间已经开始了他的旅行对猎人。18新利最新登入18新利最新登入回来我们应该走多远?自约翰走了12小时在即将离任的旅行中,我们应该回到12小时替代的框架。在这个替代的起点,他对猎人的时钟会读10.8小时。 This is extremely important. It clearly shows that both twins or the twin and the substitute observe the other as having slower times. The big shift occurs when the frame of reference is changed. This means that both observe the other to have a slower time during the actual outgoing and return trips, but there is a shift during the frame change that more than makes up for John's account of Hunter's slowly running clock. After the frame change, the damage has been done. John will still observe Hunter's clock to run slow, but it will never slow down enough to compensate for the 10.8 hours that were perceived during the frame change. Is this time jump a physical occurrence? No. The time jump occurs because when John changes frames, he is no longer using the same event as a reference. When John made his turnaround, the event in Hunter's frame that John thought was simultaneous with his turnaround changed. John's frame change caused this confusion because his new frame uses a different time for the event in Hunter's frame. More clearly, the turnaround event in Hunter's frame has a different time value for the outgoing leg and the return leg, as perceived by John. Keep in mind that in the above references to Hunter's frame, I'm really talking about what John thinks Hunter's frame time would be. This time difference is only apparent to John because it is his frame change that causes the discrepancy. In Hunter's frame, nothing changes for Hunter when John changes frames. Here again, by realizing that the two events are not simultaneous, the paradox is resolved. The point I am trying to emphasis is that there are a variety of ways to handle the paradox. All of the methods yield the same result, but if you actually consider the simultaneity of the situation, then the how's and why's become more clear.
在下一节中,我们来看看时间旅行。
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