[geordief]

pendulums (penduli??)

Rarely "pendula" (rather than "penduli") as it is the neuter form of "pendulus"

From the link it seems that only physicists care about "pendula" 
                                                              https://en.wiktionary.org/wiki/pendulum

[guest45734]

I know very little about harmonic oscillators.  Can their "energy levels" interact/interfere with one another?

Sorry my lttr  "e" has packd up.

Pndulums ar not th bst xampl for sing wav intractions. Wavs travlling ovr th surfac of an ocan intract causing transint paks or standing wavs. This is also sn on lctrical circuits with null points and paks. 
All things can b viwd as wavs in QFT wavs intract and produc paks and troughs in spac. Quantum Fluctuations in spac could b th rsult of wav intractions.

I nd a nw kyboard.

[guest45734]

Cosmic strings: Gravitation without local curvature by T.M. Helliwell, Am. J. Phys.,55(5), May (1987)

Abstract: http://dx.doi.org/10.1119/1.15145http://dx.doi.org/10.1119/1.15145

Th link dosnt work lik my lttr "e", but from th abstract, thr is a lot of spculation, which is good.

In M thory th strings hav dimnsions and rsonanc, th mmbran howvr appars to hav no dimnsions, doi yoiu hav an opinion on this

[Bill S]

.... This includes the observational predictions of the double imaging of quasars and the truncation of the images of galaxies.

I recall having read, I think it was in Brian Greene’s “The Fabric of the Cosmos” that these strings would be under such enormous tension that this would exactly counter-balance their gravity.  If that were the case, would it not eliminate the possibility of gravitational lensing? 

[guest45734]

Strings are mathematical models which are fashionable. They do not appear to take into account the entanglement of space time at the plank level, unless it is via the Membrane of M theory. If photons and electrons can be entangled then space time must also be entangled to a certain extent. Einsteins er and epr include wormholes in space time.

Are there any active areas of research that suggest dark matter could be explained away with an additional long range force, transferred via a wormhole, or is this covered with the M-Brane of string theory.

[guest45734]

.... This includes the observational predictions of the double imaging of quasars and the truncation of the images of galaxies.

I recall having read, I think it was in Brian Greene’s “The Fabric of the Cosmos” that these strings would be under such enormous tension that this would exactly counter-balance their gravity.  If that were the case, would it not eliminate the possibility of gravitational lensing?

The string if entangled via a wormhole to seperate points in space time might not be   stressed.

[Bill S]

The string if entangled via a wormhole to seperate points in space time might not be   stressed.

Come back Bill Ockham, all is forgiven!

[guest45734]

The string if entangled via a wormhole to seperate points in space time might not be   stressed.

Come back Bill Ockham, all is forgiven!

Dont stress . Kiss works just as well as occams razor, without a priest being involved

With a bit of googling my question was along the right lines. With multiple hits on engtanglement  EPR ER bridges and wormholes. Here are a couple of random hits https://phys.org/news/2015-05-spacetime-built-quantum-entanglement.html https://en.wikipedia.org/wiki/ER%3DEPR . There are some heavier hits on research gate, all barking up the same tree.

The concept of an infinitely long string is a mathematical convenience, strings are not physical objects as I am sure you realize . Wormholes as suggested by that rather clever fellow Einstein, might actually exist and they may be involved in the structure of space time. 

A wormhole has no dimensions. The membrane of M-theory that connects both ends of all strings in super string theory has no dimensions. I was asking is the M-Brane of M theory equivalent to a wormhole.

If your string transfers its information via a wormhole in space time, length may not be an issue.

Mixing the holographic principle and wormholes kind of makes sense also when looking at space time and gravity

[Bill S]

https://phys.org/news/2015-05-spacetime-built-quantum-entanglement.html

Thanks.  Must try to find a bit of time for that one.

[evan_au]

The membrane of M-theory that connects both ends of all strings in super string theory has no dimensions.

Please clarify this statement.

I read that M-theory has 11 dimensions, and various subspaces of 2 and 5 dimensions.
If true, we would live in a subspace of these 11 dimensions, the dimensions which we can sense stretching for billions of light-years.

See: https://en.wikipedia.org/wiki/M-theory

[guest45734]

Please clarify this statement.

Open strings exist in the early string theories, later string theories use closed strings connected to a membrane or D Brane. This membrane has dimensions but appears at my noddy level of understanding to have no defined physical size. The properties of the particles appear to be governed by the strings. String theories attempting to explain gravity use a membrane or DBrain. https://en.wikipedia.org/wiki/D-brane

String theories of various types have up to 22 dimensions M theory at my last reading was I think 13 dimensions, here is some wiki to clarify. There are lots of string theories out there all attempting to explain different aspects of the universe as i am sure you are aware.
https://en.wikipedia.org/wiki/Superstring_theory