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Author Topic:   Big Bang...How Did it Happen?
Darwin Storm
Inactive Member


Message 4 of 414 (92178)
03-13-2004 3:22 AM
Reply to: Message 3 by Navy10E
03-13-2004 3:18 AM


Correction, what you asked for is everyone's opinion.

This message is a reply to:
 Message 3 by Navy10E, posted 03-13-2004 3:18 AM Navy10E has replied

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Darwin Storm
Inactive Member


Message 31 of 414 (92242)
03-13-2004 2:29 PM
Reply to: Message 30 by Beercules
03-13-2004 1:16 PM


It is an intersting question though. There well be another "dimension" around which space curves. As an example, a 2 dimensional surface can be curved to make a globe. At a small enough resolution, you would only see 2 d space, but you would know, due to certain measurements, that it wasn't "flat". We see a similar effect in our 3-d space. It does raise the question of which dimension is space curving around and why.

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Darwin Storm
Inactive Member


Message 53 of 414 (92396)
03-14-2004 10:36 AM
Reply to: Message 34 by Melchior
03-13-2004 4:25 PM


And Darwin, in a true 2D sphere surface, there would be no curvature at all for any 2D observer. Since the 'space' curves, you could go in a totally straight line and still come back to the start.
True, but that itself would be a measurable path indicitive of a 2-d geometry other than flat. Likewise, any tringular measure would have angles that add up to less than 180 degrees. My point was that you could measure things in 2-d space and determine it wasn't "flat".
Likewise, in our universe, there are things we can measure to determing if we are a in a universe with a pac-man like geometery, (if total energy and mass content is over critical value), open saddle spatial geometry if universe is below critical value, or flat. Of course, space can curve on the small scale structure as well, ie around any mass.

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Darwin Storm
Inactive Member


Message 54 of 414 (92398)
03-14-2004 10:49 AM
Reply to: Message 33 by Navy10E
03-13-2004 3:50 PM


Ok, so what I'm to take from this is that space (that is: physical area devoid of matter and energy) isn't devoid of the laws of nature/physics/etc...therefore you don't consider it empty?
And it's as these laws are expanding with the universe, it is "conquering" space with no laws, and making it space with laws?
Actually, space is anything but empty. Almost all of space has energy, often in the form of light, traveling through it. Normal matter composes only a small portion of the universes matter/energy total. Additionally, even in a vacuum, there exists "virtual particles", or particles that spontanously generate and decay in time periods so short they can't be directly measured. However, the experitmental evidence, such as the casmir effect, support this model. Space isn't expanding into "other space", its just expanding. Ie draw a small circle on a balloon, and blow it up. The circle gets bigger. Its the same space expanding.
As for the physical rules that the universe opperates by, it may well be a simple function of space. However, that is personal conjecture. I am not sure if there is a theoretical approach to this question, or if it is currently outside scientific perview.

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Darwin Storm
Inactive Member


Message 147 of 414 (94303)
03-24-2004 12:30 AM
Reply to: Message 144 by Navy10E
03-23-2004 4:08 PM


It seems to be a logical fallacy to assume that there are only two possiblities, doesn't it Navy? Not that all possiblities are equally likley, but there may be quite a few better contestants than a 6000yr old universe. Heck, I think the Australian Aboriginies have a better creation story.

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Darwin Storm
Inactive Member


Message 302 of 414 (137689)
08-28-2004 5:16 PM
Reply to: Message 294 by Christian7
08-28-2004 5:05 PM


Re: so
The math for programming, in most cases, is mostly algebraic, and quite simple compared to what is required for higher level physics.
After 3 semesters of calculus, I am at the point where I am starting to understand the math behind some of the upper division phyisics. You can do well with the first few semesters of physics with the first semester or two of calculus. However, the more I look into higher division physics courses, the more math I see that I just don't know. Right now, I am taking Differential equations, which is just allowing me to see some of the mathematical reasons for equations that were handed to us in earlier physics classes, because at that earlier stage, most students have enought math to manipulate the equations, but not to derive them. As it stands, I still have many more semesters of math ahead of me to be able to understand the mathematical reasoning behind various physics priciples. The more I learn, the more I realize how little I know.
If you want a strong math backround to understand physics, just stick with the mathmatics courses, and follow through the calculus courses. Understanding the math will help you understand the physics.

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 Message 294 by Christian7, posted 08-28-2004 5:05 PM Christian7 has replied

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Darwin Storm
Inactive Member


Message 310 of 414 (137697)
08-28-2004 5:25 PM
Reply to: Message 304 by Christian7
08-28-2004 5:17 PM


Re: so
You don't have to wait, if you are motivated, go to Barnes and Nobles, or some other book sight. Get a good solid book on Algebra and Trig (both are extemely important). After you feel you have mastered that, move on to a pre-calc or calculus book. Feel free to talk to teachers for help, many are willing to help motivated students, or find other students who want to excel in math at a faster pace. There is alot of material to calculus, so that will probably take some time, but stick with it. Alot of intersting stuff becomes mathematically appearant as you progress.

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