14th June 2011 - 12:38 AM
QUOTE (Steve0612+Jun 13 2011, 02:43 PM)
If I may.... The big bang is pretty much settled on as the creation event of our universe and has been proved by a number of experiments e.g. The cosmic microwave background the tricky part is figuring out where the huge amount of energy came from (since it was energy that created the mass we see E=mc^2). Branes theory If I remember correctly states there are multiples of branes existing very close together but never touching except at certain events. When a brane moves towards another brane it "speeds up" gaining kinetic energy. The brane moves faster and faster until it connects with the other brane at a single point (the singularity of the big bang) at this point all the kinetic energy of the branes (as it is possible that both branes move towards each other) is transferred into one and the branes then move apart. Inside the brane that just received this huge amount of energy at a single point is where the big bang comes into play. Imagine you shoot a bottle of cola with a gun at the point the bullet hits you see a rush of fizz spraying from the hole the same goes with the universe. All this energy cannot be contained at a single point and thus expands. The energy is transformed into the mass we see today for example two X-ray photons can generate an electron-positron pair (im not saying at the beginning of the universe all matter was created from X-rays I'm just saying that energy can be turned into matter) this requires allot of energy at the same place E=mc^2. The big bang spreads out and we get the universe as it is today. The difference between branes theory and others is that branes states our universe will not implode but simply everything will move further and further away and the universe will simply fade out and then in another n number of years the branes will collide again and the same process happens again.
Im not a PhD theoretical physicist and some of my information might be wrong. If it is please tell me as I would like to make sure I get it right the next time.
I realized my post was a bit off topic. Here is a very recent paper on the topic you're discussing. Some very informative diagrams describimg the bang crunch cycle derived from the theory.http://arxiv.org/abs/1105.3606
16th June 2011 - 06:39 PM
Multi-dimensional thinking is very hard. And it's hard to separate out 'time' as a dimension (when thinking about dimensions higher than 5), while realising that there are analogous dimensions TO time in those higher dimensions.
So, in 4D, time doesn't change, it just is. But a 4D universe can have a fifth changing dimension that's not variable in the 5 dimension universe.
It's tough to understand.
Regarding branes: there's no need for there to be a 'when' another one collides, because the time dimension of branes is not the equivalent of what we think of as time. Their time dimension is merely the dimension along which they change.
16th June 2011 - 08:58 PM
^ I hate to break it to you but you obviously don't know how to think about multidimensional things such as branes in string theory. There aren't analogous time dimensions in higher dimensions in branes.
You say it is hard will pretending you understand it. You don't.
19th June 2011 - 06:28 PM
No, I'm pretty sure I'm right.
There's nothing about brane theory that demands that branes change along our dimension of time. Now, the theory is capable of having changes in branes with those changes corresponding to changes in our time dimension, but that's just because brane theory itself has a lot of wiggle-room.
The orientation between branes (er, 'between' not being quite the right word) can change, and brane theory requires that they do change. But their changing is within their own dimensional coordinates, which don't need to be within our (perceived) dimensional coordinates.
In fact, the language basically describes what I'm saying. We say "branes collided", which is analogues to something occurring along a time dimension. But there is no need for this change in the orientation between two branes to be along our time dimension. We can use brane collisions to create a universe that move towards complete entropy and infinite 'forward' time, without any additional change in the coordinates in which branes interact.
24th July 2011 - 11:54 PM
QUOTE (Nick+May 30 2006, 08:39 PM)
If our universe was a collision of two branes when is the third one gonna hit and whipe everything out? Its such a moronic theory.
It works for modern ID theory... Features of the Universe and of Living Things
Big Bang Theory indicates the universe is expanding. Conservation of matter/energy additionally suggests a cyclic model of the universe where expansion is part of a wave in a sustained oscillation that changes polarity (matter to anti-matter) at a point in 3D space called a “singularity” (in 2D space the 0 or center Ground line on oscilloscope). In electronics, where nothing exists to distort the sustained oscillation of an oscillator, regardless of their waveform, complexity all waves are 100% identical. Adding harmonics would produce a variety of returning waveforms.
In a system where it is possible for each cycle to be like the last (or in a range) we must consider it to be deterministic, always the same result any time called with a specific set of input parameters. This is true of digital computers. As a result, the computer model of this theory relives the same lifetime over again every time it is restarted with the same input parameters, regardless of it using the systems random generator to take a guess. More appropriately, a digital computer is pseudorandom.
It might seem highly unlikely for either a digital computer or the universe to be this deterministic, yet for matter to be nondeterministic a chemical reaction would have to produce different results each time it is performed with a specific set of reactants and conditions. The computer model of self-learning intelligence is none the less autonomously making its own decisions, and has freewill.http://sites.google.com/site/intelligencep...igentDesign.doc
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