My grandaddy used to love to tell me funny stories. "You see the sunlight?" he would say. I would nod in agreement. "Well, this isn't happening now, this is old sunlight, it is at least eight minutes old. For all we know, the sun could be gone and we won't know this for eight minutes!"
Ah, how reassuring that is for a child to hear! OK! The sun is shining, seemingly! His point was, the sun is a star and we are always doomed to see what has already happened, not what is presently happening. He would point to distant stars. "We have no idea what they look like today," he would tell me.
Aside from having a rather psychotic childhood, this forced me to never take any information for granted. All data was corrupted by time. The greater the distance, the greater the corruption of the incoming information. He explained red shift to me, too. It was still rather a new concept for him, it was first explained back when he was in middle age, after all. Thanks to the new fangled observatories at Mt. Wilson, his home, and Mt. Palomar, both activated before the Great Depression, the values of redshift were observed and analysed. So for him, it was always an amazing thing. When my pioneer astronomer grandaddy was dying of extreme old age, black holes were "discovered".
I remember well, my astronomer parents struggling to understand this new fangled idea. It helps to get a little drunk, first, but they were teetotalers, thanks to my great grandmother's absolute nixing of any drinking (a long story behind that).
I grew up, listening to this debate rage in the sixties onwards. I am not an astronomer. I have no physics degrees. I just hobnob with those who have the magic keys to the Universe.
Well....along came the Hubble Space Telescope. I wrote, for Congress, "With this telescope, we will be able to see the Hand of God at the Moment of Creation". And so it was. As we look at the incoming data that this great telescope and the other great telescopes in space are assembling, each using a different wave length, suddenly, the harsh facts of our universe come increasingly into focus.
First, the universe is very complex. There are many kinds of galaxies and other entities in this Universe. It is very dense in places and it isn't even in quality or surface. Indeed, the physical aspects of it are very warped. Space/time isn't linear nor straight as the crow flies nor easily navigated by mere calculations from humans and computers. It is incredibly complex.
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Unlike most children, I grew up in a universe that was not only fluid but very tenuous. My grandfather instilled into my mind at a very early age, the idea that what you see now isn't what is now, it is only the past and the past is only a clue as to what is happening now. The sun, even as it shone upon my curious face, was something in the past, the sun was forever eight or more minutes ahead of me.
The confusions of Einsteinian space was normalacy for me. Aside from the fact that grandpa hung out with Einstein, both my parents allowed me to hang out in the observatories where they worked as well as free access to their offices. Like a cloud of chicks surrounding a clucking hen, my mother kept us within yelling distance of herself as she worked as an astronomer. I noticed, over the years, virtually no other astronomers did this.
When the Big Bang theory was born, I freaked out. "How can this happen?" I asked, over and over. "It was a Singularity", said my dad. "A miracle". This made him believe in "God". But it did the opposite for me. Traveling in the mind back to the beginning of it all, one has to understand the impossible.
So I built up a mental structure to explain this.
There are many laws of nature. There is gravity, there is conservation of energy, there is quantum mechanics and so on. Then there is random chance.
All my life, people talk about random chance. The favorite example used nearly universally is "'X' chances of being hit by lightning twice' or 'once'". I have been hit by lightning three times, directly, all indoors and all times, I took all possible measures to avoid being hit. What are the random chances of that? Not even in the same state, much less, building, too.
The number is so off the scale, perhaps, no human has ever won this record. Some have been hit several times, in the same place which is where lightning often hits. But I have been hit in odd places, never the same one. So I am a Singularity.
Thinking about Singularities amuses me. Imagine space and time when there was nothing there. Time was eternal since nothing degraded, there were no laws of nature because there was nothing to act out the laws, ergo, the laws were null and void. In this state of nonbeing, something had to be working, it had to have no physical features because this required something existing. What exists in nothingness?
Random chance.
What is random chance under these circumstances? Since there is nothing, it happens without anything acting out because of randomosity. This means, the only thing that is possible at all times is nothing. Head hurt yet? Well, when all possible chances are exhausted, there are other chances, more improbable like five Republicans winning in an election, all of them getting 18181 as the vote total? It "happened" here in America but I doubt it was due to random chance. Nonetheless, random chance silently and invisibly deals with such improbabilities and they are done, and it continues with contemplation of all possibilities. Eventually, there being no time, glitches in randomness occur as the improbable folds back into itself into such contortions that all possible improbabilities are now on top of each other and crushed together and then the only thing left is the impossible: a true Singularity.
This moment is amazingly explosive. All the laws of Nature are born simultaneously. Time begins.
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I was told, the universe is a vast balloon and all the matter rides on the outside membrane of this balloon. When we use the Hubble Space Telescope to look back in time, we see galaxies from all the way back to nearly the very beginning when light began to shine because we can only look backwards in time. As the balloon expands, the various galaxies race away from each other and soon enough, all will spin off into the eternal darkness, never to see each other again, to dwindle into cold pieces of stone...what a delightful idea...not.
I couldn't accept this fatalistic vision. It clashed with too many things, especially the idea that things are born, mature, die and then are reborn in a new form or shape. Nature has a tendency to create as well as destroy.
So I held my tongue for years until the Hubble Space Telescope began to reveal to us the true nature of the Universe. The joy with which I greeted each revelation is inexpressible. I still tear up when I look at some of the mind numbingly beautiful visions.
And I started counting.
How many galaxies are crashing into each other. Great grinding wheels, sliding into each other. "Maybe there is only a few", astronomers said when I was very little. As the clustering of galaxies became more and more obvious, string theory was created to explain this strange thing. Maybe they like string out, only to move away from each other, forever?
Then, in recent years, astronomers began to realize, galaxies slide into each other...a lot. And that we are sliding into Andromeda. And Andromeda and we are sliding along with the Local Group of galaxies into the Great Attractor.
Interacting Galaxies
Fossil Galaxies 'Eat Their Neigbors'
This BBC story is particularily funny because it is full of ideas that are not only half baked, but downright insane. Why would anyone call this giant conglamoration of a star system a "fossil" is beyond belief! It isn't dead yet. Nor dying. Nor going away, for that matter. It is FEEDING. Anything coming near their gravitational pools which should be called gravitational seas, slides helplessly down the maw of these beasts.
It would be like watching a living Tyrannasaurus Rex eat and saying, "It is a fossil" just because we see the results of its dinner 2 million years in the past. As granddaddy would say, "How do you know what it is doing today? There is no way of telling".
Then along comes this attempt at explaining things:
Black Holes 'Do Not Exist'
By Philip Ball © ESA/NASA
4-7-5
Black holes are staples of science fiction and many think astronomers have observed them indirectly. But according to a physicist at the Lawrence Livermore National Laboratory in California, these awesome breaches in space-time do not and indeed cannot exist.
Over the past few years, observations of the motions of galaxies have shown that some 70% the Universe seems to be composed of a strange 'dark energy' that is driving the Universe's accelerating expansion.
George Chapline thinks that the collapse of the massive stars, which was long believed to generate black holes, actually leads to the formation of stars that contain dark energy. "It's a near certainty that black holes don't exist," he claims.
Black holes are one of the most celebrated predictions of Einstein's general theory of relativity, which explains gravity as the warping of space-time caused by massive objects. The theory suggests that a sufficiently massive star, when it dies, will collapse under its own gravity to a single point.
But Einstein didn't believe in black holes, Chapline argues. "Unfortunately", he adds, "he couldn't articulate why." At the root of the problem is the other revolutionary theory of twentieth-century physics, which Einstein also helped to formulate: quantum mechanics.
Ah, someone is treading nearby, but then misses:
He also thinks that the Universe could be filled with 'primordial' dark-energy stars. These are formed not by stellar collapse but by fluctuations of space-time itself, like blobs of liquid condensing spontaneously out of a cooling gas. These, he suggests, could be stuff that has the same gravitational effect as normal matter, but cannot be seen: the elusive substance known as dark matter.
References
Chapline G. Arxiv, http://xxx.arxiv.org/abs/astro-ph/0503200 (2005).
Bill Hamilton AstroScience Research Network http://www.astrosciences.info/ "I don't see the logic of rejecting data just because they seem incredible." Fred Hoyle
http://www.nature.com/physics/=
OK. The "in" thing today is "dark matter". This is the aether of the 21st Century. The mysterious force that "explains" everything. Only....it is a duex ex machina concocted to keep us from thinking about the Tyrannasaurus Rex galaxies happily munching on smaller galaxies.
Cute but no Kuiper doll.
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Why would Nature and random chance want to rip apart the Universe? It seems to me to be an awful waste. Usually, big things eat smaller things. You might call this a Law of Nature, red in tooth and claw. Seems to be the order of the day, here on earth. Little things eat big things, too. Germs and worms and vultures dine on the dead. Matter breaks down and is remade over and over again.
Why would Nature do otherwise?
Let's look at the balloon caused by the Singularity. The force of the explosion caused all the possible matter in the Universe to flow outwards since it was released...oh, from the prison of nothingness where it was boxed in so utterly. Ahem.
The force of the explosion carries all before it, the balloon moves into the vacuum of nothingness pushing all matter outwards. But smaller singularities form nearly immediately because of the density of matter, it tends to fall INTO EACH OTHER rather than repulsed away from each other. The energy to repulse starts when the first stars began to shine, the departing photon units have some force behind them.
I know this is bad physics, but bear with me for you are traveling through the thought patterns of a child, this is how I reasoned out things as a child.
It isn't one or two or twenty or fifty galaxies falling into each other, EVERY galaxy is falling into each other all the time. Each one has a gravitational pool. Each pool is as deep as each galaxy's mass can create on the surface of the space/time continuum. The great galaxies that are surrounded by hundreds or thousands of captive galaxies have deeeep indentations in the space/time balloon's surface. So deep, light from galaxies behind these monsters is multiplied and warped hugely, unimaginably hugely.
So, if all galaxies are falling INTO each other, how can the Universe be expanding rapidly and forever? What about red shift?
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Pretend you have this immensely huge balloon. And each galaxy is a finger pressing into the surface of this balloon. As you travel along the outside skin of this balloon, it looks, as you POKE EVER DEEPER, that the time to pass out of the indentation you are in, travel around the balloon and then travel down into the indentation on the other side of the balloon, it is a great distance. Huge. Amazing. As you slide down the side of the opposite indentation, you speed up and it looks like your home indentation is truly traveling away from you at an increasingly accelerating speed.
Now, pretend you are God sitting in the middle of this balloon.
You can see the fingers indenting the balloon all at once, they are all coming closer together, the greater the weight, the closer to the center of the balloon they go.
All the smaller fingers are slipping along the surface of the balloon towards the two main fingers pressing in the hardest. Eventually after sitting there for 20 billion+ years, the fingers on either side of the balloon are the only ones left and they touch in the center.
And merge.
This will be called, "The Big Bang" by some future organism that figures out something is afoot.
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