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String theory and gravity

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#26 Pess

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Posted 01 February 2013 - 08:21 PM

Pesse (Higgs? Higgs? Who has the Higgs?) Mist


If you need some I have extras...


pesse (I know I have a bunch all around here. Just can't find them.) Mist

#27 deSitter

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Posted 01 February 2013 - 10:16 PM

Let's restate the facts.

1) There is a school of thought which equates the spin-2 boson with gravity. As Einstein conceived it, and as everybody actually calculates with it, gravity is the effect of curvature in a non-flat manifold.

2) The facts of group theory mean that if gravity is going to be a force like the others, given its properties, it has to be a spin-2 boson.

3) The reverse idea then presents itself - can the theory of a spin-2 boson express itself as geometry, in the original sense of Einstein, in which gravity and geometry were co-extensive?

I open the floor to questions.

-drl

#28 llanitedave

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Posted 01 February 2013 - 10:26 PM

Space fields to accompany force fields?

#29 deSitter

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Posted 01 February 2013 - 10:53 PM

Dualistic ab initio

-drl

#30 Joad

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Posted 01 February 2013 - 11:50 PM

All I know is that a lot of physicists appear to be sitting on the edge of their seats awaiting the eventual restart of the LHC, because they are looking to the LHC either to confirm or refute Super-symmetry.

From what I can make out, there is a fair amount of nervousness that Super-symmetry will not be confirmed (it hasn't yet) and everyone will be back to square one.

But no amount of speculation will resolve the matter. We must be patient and wait for the LHC to get back to work.

#31 llanitedave

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Posted 02 February 2013 - 11:59 AM

Dualistic ab initio

-drl


Well, that was easy for YOU to say!

#32 llanitedave

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Posted 02 February 2013 - 12:01 PM

All I know is that a lot of physicists appear to be sitting on the edge of their seats awaiting the eventual restart of the LHC, because they are looking to the LHC either to confirm or refute Super-symmetry.

From what I can make out, there is a fair amount of nervousness that Super-symmetry will not be confirmed (it hasn't yet) and everyone will be back to square one.

But no amount of speculation will resolve the matter. We must be patient and wait for the LHC to get back to work.


The physicists may be patient, but those of us straining our eyes from the upper deck rarely are.

#33 StarWars

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Posted 02 February 2013 - 10:51 PM

brane == membrane

just sayin



According to PBS The Elegant Universe and Fabric of the cosmos host Brian Greene the Brane is a Universe. Each universe will have it's own String Theory (DNA) and when two universes collide. The result will be a Big Bang!

#34 deSitter

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Posted 03 February 2013 - 02:34 PM

When stated in bare form this way, the reek of pseudoscience is so apparent - I know StarWars it's not your fault - just repeating what you've heard - but it's just embarrassing to have such things stated in the name of science. Having spent literally a lifetime thinking about these things, I cannot describe the sense of cultural debasement involved.

-drl

#35 EJN

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Posted 04 February 2013 - 11:43 AM

..

Attached Files



#36 Pess

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Posted 04 February 2013 - 01:28 PM

Sanitized for your protection.



You know those 'sanitized for your protection' strips motels put across toilets?

They are the number one cause of head lacerations in dogs!

Pesse (Public service announcement) Mist

#37 scopethis

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Posted 11 February 2013 - 05:30 PM

they can also leave backward lettering on one's buttock...

#38 Napersky

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Posted 13 March 2013 - 06:50 PM

Post deleted by Napersky






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