The existence of extra dimensions is explained using the Calabi-Yau manifold, in which all the intrinsic properties of elementary particles are hidden.
Credit: A Hanson.
Explained, mind you. I now have no excuse for not understanding it.
Explained, mind you. I now have no excuse for not understanding it.
“The Elegant Universe” by Brian Greene is an entertaining book on this subject.
I’ve never understood it either.
Cool to think about but basically useless.
I only understand things up to and including, The Fifth Dimension. It leave me one less bell to answer, one less egg to fry. But, each time the doorbell rings, I still run. ;)
The term “dimension” always conjures up ideas of parallel universes, time travel, and all manner of topics fit for late-nite AM radio, but “dimension” here simply means another degree of freedom that is “orthogonal” and independent of the previously known one(s). They allow quantum systems to store energy of motion or configuration in new places in order to satisfy conservation and symmetry laws.
And, in case the obvious question isn't obvious, if a theory cannot describe the real world, what the hell good is it?
You are about to enter another dimension, a dimension not only of sight and sound but of mind. A journey into a wondrous land of imagination. Next stop, the Twilight Zone!
Who are they trying to kid. There are seven dimensions to an octave and then it repeats itself.
It turns out that ten dimensions were hypothesized long before string theory adopted the idea. The hypothesis held that all but the three we have now collapsed within a nanosecond of the Big bang. I first heard this in high school in the sixties.
And in three dimensions, your tax money is exponentially being pissed away on this crap.
How do you test a hypothesis in the tenth dimension, by the way?
I can jerk off in about 5 minutes and RELATIVELY accomplish as much as these clowns.
I’m having enough trouble with 3 dimensions.
Do you like how we hijacked your thread :-)
If I put a Calabi-Yau manifold on my Chevy truck would that give me infinite horsepower?
Like, cosmic, man...
I’m still trying to get my head around where’s the edge of the universe and what’s beyond that.
I’m almost tempted to believe that we are just one computer program like the Matrix but then what’s controlling the computer program? And then still, where’s the edge of the computer program and what’s beyond that. Then the beings controlling the program where’s the edge of their universe and what’s beyond that?
Ghosts I’ll never understand either. A Matrix glitch like in the movie?
That and gay guys.
“In fact, the theoretical framework of Superstring Theory posits that the universe exists in ten different dimensions.”
Stop calling it a theory! Theories first of all are singular, not fifty different flavors of “string” interpretations that are all equally plausible or implausible. Also, theories have to make testable predictions, or they are just intellectual masturbation.
n-dimensional mobius “solid”?
From Amazon (emphasis added):
"In this illuminating book, the renowned theoretical physicist Lee Smolin argues that fundamental physics -- the search for the laws of nature -- losing its way. Ambitious ideas about extra dimensions, exotic particles, multiple universes, and strings have captured the public’s imagination -- and the imagination of experts. But these ideas have not been tested experimentally, and some, like string theory, seem to offer no possibility of being tested. Yet these speculations dominate the field, attracting the best talent and much of the funding and creating a climate in which emerging physicists are often penalized for pursuing other avenues. As Smolin points out, the situation threatens to impede the very progress of science. With clarity, passion, and authority, Smolin offers an unblinking assessment of the troubles that face modern physics -- and an encouraging view of where the search for the next big idea may lead."
There are three dimensions.
Anyone who says different is a blasphemer.