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发表于 12-10-2009 01:52 PM
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发表于 15-10-2009 09:04 PM
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发表于 17-10-2009 12:50 PM
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原帖由 humor.losers 于 15-10-2009 09:04 PM 发表
时间是不存在,时间是人类用来标记一定的时光!!!
绝对赞同。
人类要突破速度,人类必须放弃时间 |
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发表于 17-11-2009 04:00 PM
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原帖由 xiaoji 于 20-5-2007 11:37 PM 发表
是的,我搞错了。
通常说黑洞会把所有东西(包括光)都吸进去,
它的有效距离是多远?
还有,在被黑洞吸进去后,理论上如何避免出不来而成为浓缩原子?
可能被黑洞吸取的物质会在白洞出来时经过了某种放大作用把原来的浓缩原子变回正常的原子吧。 |
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发表于 27-11-2009 11:07 PM
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发表于 28-11-2009 02:46 AM
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发表于 21-10-2010 12:44 AM
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发表于 25-10-2010 12:20 AM
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黑洞里可以看到过去????不会吧!连光子都逃不过去,全部都集中在一点了。
虫洞是可以缩短2各地方的距离,也不能看到过去吧。 |
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发表于 6-11-2010 11:55 PM
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当您的身躯或者是您的探测仪接近黑洞外,所有我们所知的物理定义以经完全丧失运作。接下来我们只能以未知理论来猜测它的核心运作。 |
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发表于 17-12-2010 09:22 PM
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不想看到自己的过去...哈哈哈 |
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发表于 23-12-2010 09:48 PM
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想象力别太丰富了......
黑洞里看到的是乌漆嘛黑一片...... |
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发表于 28-1-2011 05:36 PM
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进到黑洞里?还没进到去都已经被压力压得解体了,还看什么? |
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发表于 8-2-2011 12:07 PM
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Black hole is actually a portion in space where nothing exists, in other words, there is nothing can escape the attraction force of this kind of special matter. Even light fails to escape its force. It consists of super condensed mass that causes its gravity to be very strong. We cannot see the black hole since it cannot reflect the light, but we know its existence through the effects that it exerts onto the visible matters around it, for example, the rotation of the planets, X-rays binary, gravitational lensing and so on. It is known that black holes are abundant at the centre of the universe, and even our galaxy, Milky Way, also possess one black hole which is approximately 4 million solar masses!!! But i'm not sure whether such strong supermassive black hole may eat out our galaxy or not. Even if it happens, that would be a million years after, so there is nothing to worry about... Lol...
So, back to the question, can we see the past when we get into the black hole? The answer is impossible, because we would be crushed to bits due to the super strong gravity of the black hole. Every matter would be pulled apart until all particles are dispersed and nothing is left when it accidentally drops into the centre of the black hole, which is event horizon. There is a place in the middle of event horizon of the black hole, called Singularity, when a matter reaches this point, every particles has been pulled apart! Thus, how on earth humans can see the past when they are being thorn apart?
There is one saying that at event horizon, the strong gravity of the black hole will cause some space time distortion, where the time experienced by experiencer will be slowed down, but this is just a hypothesis, since nobody can get himself or herself out the black hole alive. Or, in other words, no one yet to enter the black hole. Therefore, how exactly happens in black hole, nobody would know. |
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发表于 8-2-2011 12:15 PM
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回复 19# xiaoji
When you falls into black hole, you would be crushed to bits by its strong gravity until there is nothing left. Your cells would be pulled apart into atoms, electrons, protons etc, then further down to Quarks, and finally, nothing.
There is a supermassive black hole that is close to our galaxy, but I forgot its distance already, should be million years away. No need to worry, it won't destroy our earth so fast... |
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发表于 8-2-2011 12:28 PM
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回复 17# xiaoji
When a matter is being absorbed into black hole, it would be pulled apart until nothing is left (when it reaches a place called singularity in the event horizon of the black hole), even a human being. You would be just dispersed like that. Your existence ends.
About the worm hole, this is just a hypothetical theory only. Until now, no one ever see or detect worm holes yet, perhaps it only can exist in fairy tales or science fiction stories. In reality, there is no such thing as worm hole to date. Why there is such saying as warm hole? I think this is because due to one effect in quantum physics, which is quantum tunneling, in which a particle tunnels through a barrier that it cannot surmount. This can happen in quantum world and this phenomenon has a great application in reality. Or perhaps worm hole is just a theoretical solution to the equation of general relativity introduced by Albert Einstein.
Then, some scientists say that there should be an end tunnel that links black hole, which is called white hole, where all the matters being absorbed by black hole would be thrown out through this white hole. Thus, it is like black hole is mouth, while white hole is anus. Black hole eats, white hole discharges the "waste". Nonetheless, white hole is not exists. That's just a hypothesis or assumption only. |
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发表于 10-3-2011 10:07 PM
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回复 127# b506094115
我们居住的星系称 银河系,银河系中有100000000000粒恒星,宇宙中有100000000000个如银河系般的星系。而我们的太阳系只是其中一粒恒星,银河系中间是个大黑洞。我们不是住在黑洞里 |
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发表于 14-3-2011 10:35 AM
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本帖最后由 旭阳 于 14-3-2011 10:41 AM 编辑
很多人误解了“黑洞” ,认为它是宇宙间的一个“洞”!
我觉的和地球一样,黑洞极有可能是个球体,它的形成还无法定论,应该是不会有“由黑洞进去,从白洞出来”的情况,黑洞的质量超乎想象,引力之强就连光线也无法逃脱,在太空中无法观测,“看起来就像有一个洞”,所以科学家称之为黑洞!
我有一个这样的疑问!
恒星是物质分子剧烈运动的极端,根据相对论,黑洞会不会是物质分子极度静止的极端?
物质分子在“绝对静止”的情况下会出现什么反应?
我假设黑洞不是引力过强而把所有的物质都吸住(包刮光),而是他发出的物质(磁场)能把一切分子的运动静止,光子也不例外。
这样的说法成立吗? |
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发表于 19-4-2011 03:27 PM
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不太可能吧...黑洞跟时间有关系吗???
victorgmy 发表于 12-4-2007 03:31 PM
我觉得你是对的,黑洞好像合时间无关。如果要倒流或超越时空,一定要超过光速的物体。 |
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发表于 10-7-2011 11:50 AM
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是真的吗?到底在哪里的?是什么东西?不清楚,,,晕。。。晕。。,有谁可以说的比较仔细一点吗?谢谢。 |
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发表于 21-7-2011 08:43 PM
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本帖最后由 flyyellow 于 21-7-2011 08:48 PM 编辑
黑洞所看到的过去并不是真正看到的过去
只是一些残留的一些光影象 就像我们现代人
的录像机 这样罢
光影的确经过一百五十光年的空间飞奔因此续渐消失。
一旦被吸入黑洞内就很难讲咯。 |
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