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View Full Version : First, what is String Theory?


Mario
04-01-2012, 03:32 AM
OK class, here is our assignment:

The Elegant Universe
http://www.youtube.com/watch?v=3RHsma6EHXM&feature=related
http://www.youtube.com/watch?v=U8hPvMBWmdA&feature=relmfu
http://www.youtube.com/watch?v=pcVr9tZLOgc&feature=relmfu

French Version: http://www.youtube.com/watch?v=sKVuY-TC1YQ

Watch these movies (before they disappear) and let's discuss!

While you're at it, here are a couple of brain teasers for you (Ron, this one is especially for you):

Firstly, and where Quantum Mechanics is concerned, could it be that all the "other" choices we don't get (or choose) when we throw the (proverbial) dice do exist, each, in its own dimension?

Secondly, it's interesting that, in String Theory, there are (initially) 6 additional dimensions, to allow the strings to operate; meanwhile, "scientists have found that there are about 20 numbers — 20 fundamental constants of nature — that give the universe the characteristics we see today."

Hence, how would that — theoretically speaking — work insofar as the 6 personalities and the 20th Spiritual Fluid are concerned?

Lastly, could strings and Spiritual Fluids be related? Might they be the same thing?...

PS. Here is E=Mc2 Einstein's Big Idea

http://www.youtube.com/watch?v=jqiRoKy0Gyo
http://www.youtube.com/watch?v=jbmFcGhTnS0

Johnson
04-02-2012, 05:06 AM
What a great series. I have never heard string theory explained so "simply".

I am dusting off my copy of "An Idiot's Guide to String Theory" (yes, its a real book!) to fill in some of the blanks.

It is amazing to watch the struggle of how close things get to describing the world of fluids; apparently just that next "leap of faith" beyond the physics.

I like the one physicist who says "is it physics, or is it philosophy"...he just can't delve in to what he can not empirically see, taste or touch. And there is the usual schism for all things relative to faith.

I think they really have the concept of fluids... millions and millions of things affecting everything else constantly based upon millions and millions of things in many dimensions that we can't begin to truly detect. Even the graphics showing the micro micro micro world of strings/fluids is such a great illustration.

I will watch it again and take notes...:)

Loup Solitaire
04-02-2012, 05:30 PM
I'm still working on the book. The author does a great job explaning concepts. I've had the book since, well, I can't quite remember. I read a few chapters and put it asside while I consider the implications. Then, after some time goes by I read a few more.

I think I did see some of the sessions on You Tube. But I'll double check tonight.

But when it comes to dimensions, I think one needs to be careful when trying to visualize or understand. What I recall was that Mr Green was trying to explain the spatial concept of dimensions. Prior to reading his book, I thought of dimensions as simply something that existed, but I could not see or experience. I thought of dimensions as something that existed in a parallel frame. But as he explained it in the book, it really wasn't like that. I'm now even going to try to explain it, but it has to do with "How are things shaped if they are not one on the four dimensions that we can easily understand?". Here is where he got into a string as a dimension and then there are curled dimensions and on and on. Now I don't know whether there are mathmatical formula's to explain these or not. He didn't try to explain the math behind the theory.

I'll probably be reading and rereading this book the rest of my life.

Daheshville
04-02-2012, 06:02 PM
For what it's worth, we moved this post into the public area of the forum:

http://www.daheshville.com/forum/showpost.php?p=4419&postcount=1

Loup Solitaire
04-03-2012, 10:14 PM
Mario, thanks for this post. By simply viewing the first unit, I was able to eview a significanr portion of the book. And of course, I did not recall some of it correctly. But from reading the book, I thought that while in writing of the potential of parallel universes, when he wrote trying to describe the potential spatial aspects of dimensions, it all seem pretty absurd.

Can't wait until I have time to view the second segment.

Loup Solitaire
04-04-2012, 10:40 PM
Mario,again, thanks for posting the PBS videos. I've had Brian Greene's book for years abd somehow could never finish it. The videos used most of the illustrations used in the book, plus many more. These really, made it all much easier to comprehend. With the book, I got hung up on the spatial representations of dimensions. Great post.

Mario
04-05-2012, 02:37 AM
Mario,again, thanks for posting the PBS videos. I've had Brian Greene's book for years abd somehow could never finish it. The videos used most of the illustrations used in the book, plus many more. These really, made it all much easier to comprehend. With the book, I got hung up on the spatial representations of dimensions. Great post.

You're welcome, Ron.

Hopefully, someone will one day make a similar movie that would expand exclusively on the fundamentals of Quantum Mechanics, without using it to sell some new age religion or the other, or use it as their personal soap box. A cross between the excerpt from "What the Bleep Do We Know" and the lecture by Prof Susskind (who, incidentally, appears in the movie about string theory. He's the one whose paper was wrongly dismissed and rejected, as being "mediocre.")