Everything posted by Handy andy
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What is Space made of?
Yep lots to read and believe in, maybe I will start an OU course when I stop travelling.
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What is Space made of?
Thanks now I need to drag out of storage all my old semiconductor notes.
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What is Space made of?
Thanks for the replies. You can have a laugh now:) The reason for my question is based on what I think space is perceived to be full off. Space as I understand it is absolutely full of particles (virtual and real) waves of one form or another. Every point in space has some form of matter or gravitational potential gradient associated with it. I was wondering if a quantum black hole was a lack of something filling a point in space allowing other matter to flow in to fill the empty space. I also was wondering about the shape of space to allow quantum entanglement to take place. I have an half baked idea that as quantum particles come into existence they create a 3 dimensional space for a short period before popping out of existence again, possibly into a black hole. Within that 3 dimensional space occupied by a quantum particle I visualise a 4th spatial dimension allowing all points in space to be directly connected to it. It occurred to me that this might be connected to a black hole. There is as you are aware a theory of black holes losing matter through a wormhole to a white hole, which as strange pointed out has never been observed. I was partly wondering if empty space (space full of quantum activity and gradients)is partly like a white hole constantly ejecting and absorbing matter and radiation. You will be aware I don't believe in gods, unless they are misunderstood ET's , beginnings of time or singularities, I do however understand the concept of continual creation and destruction, spatial contraction and expansion. What I am probing around for is a way matter can violate the 2nd law of thermodynamics and come into existence, providing matter for a big bang. I view the quantum world as being a chaotic unstable interlinked system, whereby peaks in energy will I think inevitably happen resulting in quarks being produced in space. I think the production of a single quark that combines with other quarks to produce hydrogen, is far more likely than all matter suddenly appearing out of a mind boggling big bang. A Big bang might have happened in the past, but where did the matter and heat it exploded into space come from. If space produces matter, and black holes destroy or redistribute it, it kind of makes sense. The big bang or god as the source of all matter is a little religious for me to accept. Something was behind it and it might have been a infinite quantum entangled computing god that produced matter form the vacuum, ie made everything.
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What is Space made of?
Questions How would a quantum black hole compare with a big black hole? Can it absorb and emit radiation in the same way suggested by Hawking. Is space at the quantum level still viewed as smooth or can it be viewed as an unstable system, occasionally breaking the 2nd law of thermodynamics and popping a particle into existence, via wave interactions.? At the quantum level could a black hole be the cause of entanglement, like a wormhole. ? Should quantum black holes be viewed as wormholes or as bodies with high mass.?
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The Official JOKES SECTION :)
Old Humour
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What is Space made of?
Yep very quick answer and no I didn't follow all of it But Thank you for the links, I will download the pdf's and add them to my E reader for later digestion. Night watch in the middle of an ocean is an excellent place to do cosmology. Edit Only the link to Physics and Inflationary Cosmology" by Andrei Linde link works. This may be due to the fact I am in Portugal at the moment rather than UK or US, which is sometimes a problem.
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What is Space made of?
Thank you for those links I will take some time absorbing them. I do have further series of questions with reference to the big bang theory and cosmic background radiation. This may get relegated to speculation. I read another pop physics book some time ago based on the work of Alfen a nobel prize winning plasma physicist called "the big bank never happened", so this is not completely my idea. Is background radiation only evidence for an expanding universe, and not the origins off all matter in some huge bang from 10-43 seconds onwards, is this why it is almost uniform 2.5 kelvin throughout space and it does not appear to be cooling? What I am thinking is quantum matter appears and disappears in space continuously gradually increasing and expanding space, causing the expansion of space. This in turn perhaps on occasion produces real matter that coalesces to form planets, or suns that can supernovae and eject heavier particles into space overtime etc. Is the amount of energy in the universe slowly increasing due to quantum fluctuations expanding space. If a fixed volume of space is at 2.5kelvin, when the space in it expands beyond the fixed volume should the temperature not reduce within the fixed volume of space. Is the lifetime of fundamental particles in a zero g environment increased as evidenced by the muon decay time, does this also apply to quantum matter.? Does more quantum matter exist in space than in a gravitational environment, ie theoretical DE perhaps. Sorry for the stream of questions
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What is Space made of?
Thankyou very much for the response apologies for the pop physics derived questions, originating from expensive string theory books. I understand degrees of freedom having done some modelling before, sorry not on a cat walk more of a non linear mathematical nature involving magenetic circuits. I have a question with reference to your previous answer. I may have missed the overwhelming relevance of what you initially wrote, and never followed up with the correct question.. Paraphrasing the Big bang or quantum foam causes the expansion of space. Without a field virtual or otherwise there is no space. Quantum foam is constantly expanding space. Gravity is caused by the contraction of space ie the reduction of fields or quantum foam that creates space. DOES Mass shrink the space around it, by absorbing or calming the quantum foam which causes the expansion of space. BIG QUESTION MARK. (Sorry portuguese key board I cant find the key for question mark). Is a graviton required under QFT
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What is Space made of?
Thankyou. I have not checked to see if a thread on entanglement exists, but will look forward to the thread. Do you have an opinion on how many spacial dimensions there may be. Are the string theorists just talking about mathematical dimensions for convenience, rather than actual spacial dimensions.
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What is Space made of?
If I understood correctly space is created by fields virtual or otherwise which expand the space they occupy accelerating the expansion of the universe or the distance between galaxies. With no fields there is no space, what no space is or nothing is, is interesting and possibly just philosophical. I understand information is transmitted via quantum entanglement instantly, and not limited by c. If two points were connected by some other dimension could the distance be zero in another dimension between the points. I think last time I read a popular physics book on string theory there was 13 dimensions that could unfold.
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What is Space made of?
Another question boardering on the surreal. In terms of space or additional dimensions have you any insight on quantum entanglement. If a field fluctuation creates it own space from nothing, are all points in space connected via another dimension or nothing. Are all points in space created by fields connected in some way. How many dimensions has space.
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What is Space made of?
Thanks for the answers, Ive got it.
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What is Space made of?
"Space is just volume, fields are not required to have space" A molecule takes up space, around the molecule is a gravitational field which occupies space. Is the expansion of the space we percieve not governed by fields filling it. Galaxies free falling away from us at 3c on the edge of an expanding universe are being driven by the gravitational field which is driving them away from us.
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What is Space made of?
Thankyou for the answer, I think what was driving at is. The expansion of space under the big bang theory, was filled from the outset by fields of one form or another. Did the fields themselves create the space they occupy. Can space exist without fields. Space with no fields in cant exist. Sorry cross posted thanks for the answer
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What is Space made of?
This has to be one of the most interesting threads on this forum. Questions Does space only exist because it is full of fields. With no fields there is no space time. Space and time being variables to give the distance between fields, which if they didnt exist space time would not exist. How can space be curved without fields, how can a volume exist without a field or reference point to measure from. Can an infinte space full of fields of one form or another exist at the same time as an empty space full of nothing, would the emopty space be zero volume.
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The Official JOKES SECTION :)
Ok +1 but it has to be read slowly. TEACHER: Harold, what do you call a person who keeps on talking when people are no longer interested? HAROLD: A teacher.
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The Official JOKES SECTION :)
The Sick Note (to be read slowly with an Irish accent) Dear Sir I write this note to you to tell you of my plight And at the time of writing I am not a pretty sight; My body is all black and blue, my face a deathly grey And I write this note to say why Paddy’s not at work today. Whilst working on the fourteenth floor, some bricks I had to clear. Now to throw them down from such a height twas not a good idea. The foreman was not very pleased, he being an awkward sod. He said I’d have to cart them down the ladders in me hod. Now, clearing all those bricks by hand it was so very slow, So I hoisted up a barrel and secured the rope below. But in me haste to do the job I was too blind to see That a barrel full of building bricks was heavier than me. So when I untied the rope, the barrel fell like lead And clinging tightly to the rope I started up instead. Well I shot up like a rocket ‘til to my dismay I found That halfway up I met the bloody barrel coming down! Well, the barrel broke my shoulder as to the ground it sped And when I reached the top I hit the pulley with me head. Well I clung on tight, though numb with shock, from this almighty blow And the barrel spilled out half the bricks – fourteen floors below. Now when these bricks had fallen from the barrel to the floor I then outweighed the barrel and so started down once more, Still clinging tightly to the rope I sped towards the ground – And landed on the broken bricks that were all scattered round. Well I lay there groaning on the floor – I thought I’d passed the worst When the barrel hit the pulley wheel and then the bottom burst. Well a shower of bricks rained down on me – I hadn’t got a hope; As I lay there moaning n the floor – I let go the bloody rope. the barrel them being heavier it started down once more and landed right across me as I lay upon the floor. Well it broken three ribs and my left arm and I can only say That I hope you’ll understand why Paddy’s not at work today.