Therefore, you can never escape from inside the event horizon.
逃离视界中心，没有东西能逃离。
At the event horizon, the escape velocity is equal to the speed of light.
在活动视界里，逃逸速度等于光速。
If you tell me what m is, I will tell you what the radius of the event horizon is.
我会告诉你们，视界的，半径大小，这里我加快一点。
It's like looking at a mass accelerated past the event horizon of a black hole.
就象在看一个大规模加速通过一个黑洞的视界。
If m is the mass of the sun, the radius of the event horizon is three kilometers.
视界的半径就是，3公里，若m是太阳的三倍重。
However an observer at the event horizon would think that the man never reached the center at all.
然而事界的观察者认为那个人根本不能到达中心。
This spinning area surrounding the event horizon is called the ergosphere and has an ellipsoidal shape.
这活动视界周围旋转的区域是所谓的能层而具有椭圆形。
Hawking radiation: radiation theoretically emitted from just outside the event horizon of a black hole.
霍金辐射：理论上，从一个黑洞的视界外放出的辐射。
Essentially, the leading edge of the chasing pulse sucks it in, acting like the event horizon of a black hole.
从本质上来讲，后来追逐的脉冲的主导边缘将慢脉冲吞噬了，就像一个黑洞的视界那样。
Particles from outside this region can fall in, cross the event horizon, and will never be able to leave.
来自外面这个区域的粒子能落进去，越过活动视界，而将永远不能够离开。
To the distant observer, the object, falling slower and slower, approaches but never reaches the event horizon.
对远距离的观察者，物体越来越慢地落下，接近但是永远不会到达活动视界。
The existence of these two issues, is limited by the phenomenon of people to observe the event horizon limitations.
这两个问题的存在，乃囿于人们对现象观察视界的局限。
But once inside the event horizon (the surface of a black hole) it is never possible to communicate with the outside.
但是，一旦进入视界(黑洞的表面)，就绝无可能与外界交流了。
Because nothing can theoretically travel faster than the speed of light, nothing escapes once it's passed the event horizon.
因为理论上没有任何物体的速度会快过光速，所以一旦进入视界，任何物体都不能逃离。
To know what's inside a black hole, we need something to come out from behind the event horizon, and reach us via a telescope.
要知道黑洞里究竟是什么，我们需要有什么东西从视界里出来，并让我们用望远镜看到。
Radii stop converging as they approach the event horizon, are parallel at the horizon, and begin diverging in the interior.
当它们接近活动视界时候半径阻止了收缩，是与视界平行，而开始在内部分叉。
When the ship reached the event horizon, it would appear to stop, staying there forever and never falling in toward oblivion.
当船到达事件视界时，它可能看上去是停住了，永远留在那里并且永远不会掉入湮灭。
When a black hole absorbs a star, the star is first pulled into the Ergosphere, which sweeps all the matter into the Event Horizon.
当黑洞吸入恒星时，恒星先是被吸到能层，能层又将所有的物质卷进事界。
Once mass, or even light, passes within the event horizon of a black hole, it cannot escape the black hole's gravitational clutches.
视界一般被定义为黑洞的边界，任何物质，甚至光线，一旦进入视界范围，将无法逃逸。
When the event horizon of the black hole does not depend upon the advanced-time, the results can return to the well-known static case.
当黑洞事件视界不随超前时间变化时，结果可回到已知的静态情况。
In his paper, Dokuchaev studies hypothetical orbits in the area between the event horizon and the singularity to understand their dynamics.
在他的论文中，多库恰耶夫研究了位于视界和奇点之间的假设性轨道，来理解它们的动态变化。
Using the Gauss-Bonnet theorem, Stephen Hawking proved that the topology of the event horizon of a (four dimensional) black hole is a 2-sphere.
使用高斯-博内定理， 史蒂芬·霍金证明一个（四维）黑洞活动视界的拓扑结构是2个球体。
They found that the object itself would be kicked away from the black hole as a result of its own gravity, and the event horizon would remain intact.
他们发现那个高速旋转的物体会被自身的引力从黑洞中踢出去，而黑洞边界将原封不动。
According to theory, the event horizon of a black hole that is not spinning is spherical, and its singularity is (informally speaking) a single point.
依照理论，不旋转的黑洞活动视界是球形的，而且它的奇异点是(非正式说法)是单一点。
Thus, anything inside the event horizon, including a photon, is prevented from escaping across the event horizon by the extremely strong gravitational field.
因此，活动视界里任何东西，包括一个光子，靠非常强的引力场被避免从活动视界里逃逸出来。
The problem is that these stable orbits would only exist once you have crossed the threshold of the event horizon, where time and space flow into one another.
问题是，只有曾穿过黑洞视界的临界才会存在稳定轨道，那里时间与空间会流入其他地方。
Hawking radiation originates just outside the event horizon and, so far as it is understood, does not carry information from its interior since it is thermal.
霍金辐射由外在活动视界引发，因而就是这样理解的，由于它是热的不带有内部信息。
Their calculations suggest that the event horizon for collapsing stars never quite comes into existence, at least, not for the colleague watching from far away.
他们的计算显示崩塌恒星的事件穹界从来不会完全形成，或者至少对从远处观察黑洞的那位物理学家来说是不会完全形成的。
Their calculations suggest that the event horizon for collapsing stars never quite comes into existence, at least, not for the colleague watching from far away.
他们的计算显示崩塌恒星的事件穹界从来不会完全形成，或者至少对从远处观察黑洞的那位物理学家来说是不会完全形成的。
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