Communication via a quantum loop gravity string?

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Profile tullio
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Message 1691641 - Posted: 15 Jun 2015, 14:02:40 UTC - in response to Message 1691401.  
Last modified: 15 Jun 2015, 14:06:25 UTC

Remember it was physicist Steven Weinberg who became the discoverer of the W and Z particles. He eventually received the Nobel price for his work.

Because of this discovery, three of the four fundamental forces of nature could be more or less merged into one, with only gravity still left.

The only reason gravity has yet to be merged into the other three forces, or vice versa, is the fact that there has yet to be found a particle which is responsible for gravity.

The graviton is still a hypothetical particle and its existence has yet to be proven. Unlike bosons, where several are known, the same does not currently go when it comes to gravity. Possibly our increasing knowledge about dark matter and dark energy will one day solve this problem, but for now we are still left in the dark when it comes to this.

Steven Weinberg, Sheldon Lee Glashow and Abdus Salam received the Nobel Prize in physics in 1979 for their unification of the electromagnetic field and the weak nuclear field. The W and Z heavy bosons were discovered by Carlo Rubbia and his team Including Simon Van der Meer at CERN using the Large Electron Positron collider. Rubbia and Van der Meer received their Nobel Prize in 1984.
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Message 1691687 - Posted: 15 Jun 2015, 15:16:19 UTC - in response to Message 1691652.  

I have seen Abdus Salam in Trieste. The International Center for Theoretical Physics which he created now bears his name. But my strongest memory of Salam is of him giving a welcoming speech to Pope Giovannni Paolo II at the University of Trieste. Salam, a devout Muslim, welcomed the Pope with a broken voice, he was already ill with Parkinson. Later the Pope died of the same illness, we are all equal before illness and death. Abdus Salam means "servant of peace".
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Message 1691694 - Posted: 15 Jun 2015, 15:36:19 UTC - in response to Message 1691593.  
Last modified: 15 Jun 2015, 15:36:43 UTC

In other words they don't know squiddly dat about anything, and are just hedging their bets on all possibilities. And they are funded by a University?


No bassic thinkers there I guess..
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Message 1691754 - Posted: 15 Jun 2015, 17:10:20 UTC - in response to Message 1691637.  
Last modified: 15 Jun 2015, 17:10:41 UTC

0.4 percent margin of error.


What was the level of certainty for that margin of error and exactly how large was the triangle for the interferometer base.

Stolen from the Internet:
When using distance measurements to probe spatial curvature, the geometric degeneracy between curvature and dark energy in the distance-redshift relation typically requires either making strong assumptions about the dark energy evolution or sacrificing precision in a more model-independent approach. Measurements of the redshift evolution of the linear growth of perturbations can break the geometric degeneracy, providing curvature constraints that are both precise and model-independent. Future supernova, CMB, and cluster data have the potential to measure the curvature with an accuracy of sigma(Omega_K)=0.002, without specifying a particular dark energy phenomenology. In combination with distance measurements, the evolution of the growth function at low redshifts provides the strongest curvature constraint if the high-redshift universe is well approximated as being purely matter dominated. However, in the presence of early dark energy or massive neutrinos, the precision in curvature is reduced due to additional degeneracies, and precise normalization of the growth function relative to recombination is important for obtaining accurate constraints. Curvature limits from distances and growth compare favorably to other approaches to curvature estimation proposed in the literature, providing either greater accuracy or greater freedom from dark energy modeling assumptions, and are complementary due to the use of independent data sets. Model-independent estimates of curvature are critical for both testing inflation and obtaining unbiased constraints on dark energy parameters.


Huh ?
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Message 1691762 - Posted: 15 Jun 2015, 17:28:15 UTC - in response to Message 1691754.  

0.4 percent margin of error.

What was the level of certainty for that margin of error and exactly how large was the triangle for the interferometer base.
Huh ?

WMAP is a very big map today.
WMAP are a map of how the temperature distribution looked like in the universe about when beeing 300 thousand year old.
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Message 1691946 - Posted: 16 Jun 2015, 1:16:59 UTC - in response to Message 1691546.  

...

30 years ago during a Bell Labs seminar I heard the guru Michael Green from Queen Mary College predict that string theory would lead to the Grand Unified Theory in just a few months.

...

He was a lecturer when I was there. I remember him.
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Message 1691956 - Posted: 16 Jun 2015, 1:30:49 UTC - in response to Message 1691946.  
Last modified: 16 Jun 2015, 1:48:12 UTC

...
30 years ago during a Bell Labs seminar I heard the guru Michael Green from Queen Mary College predict that string theory would lead to the Grand Unified Theory in just a few months.
...

He was a lecturer when I was there. I remember him.

Connections between string theory and perturbative supersymmetric quantum field theory - 1 Dirac Medalists' Lecture Series
https://www.youtube.com/watch?v=UVqCAhLiZDc
Master of the Universe: Green and Schwarz String Theory.
http://videos.howstuffworks.com/science-channel/31702-master-of-the-universe-green-and-schwarz-string-theory-video.htm
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Message 1691968 - Posted: 16 Jun 2015, 2:25:49 UTC

Through the Wormhole has episode where they show a new theory about gravitons and i think one guy said they can prove there idea is correct . Did anyone watch it and what do you think about his idea a gravitons is actually made of 2 other particles . Or at least i think that what he said .
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Message 1692146 - Posted: 16 Jun 2015, 12:39:27 UTC

Complicating the matter is the possibility that gravitons might be rolled up into other dimensions. This may be why we haven't been able to see them up until now. What the scientists at CERN would be looking for would be a hole, rather than an actual graviton. There would have to be a strange imbalance in energy in and momentum after an event. The energy and momentum would amount to that of an escaped graviton - a graviton that flickered briefly her before heading into other dimensions. Granted, the fact that there are other dimensions might overshadow the discovery of gravitons, but they've never wanted glory, anyway.
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Message 1692223 - Posted: 16 Jun 2015, 15:52:51 UTC
Last modified: 16 Jun 2015, 15:53:45 UTC

This is how the neutrino was discovered. There was an inbalance in a beta decay and either energy was not conserved or there was an unknown particle in it. Now the Istituto Nazionale di Fisica Nucleare which manages the Gran Sasso National Underground Laboratory says that from 2008 to 20012 they have catched 5 muon neutrinos emitted at CERN that have changed flavor to tau neutrinos. This means that the neutrino has a mass, although a very small one, and they are trying to measure it.
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Message 1692239 - Posted: 16 Jun 2015, 16:25:40 UTC - in response to Message 1692223.  
Last modified: 16 Jun 2015, 16:27:19 UTC

This is how the neutrino was discovered. There was an inbalance in a beta decay and either energy was not conserved or there was an unknown particle in it. Now the Istituto Nazionale di Fisica Nucleare which manages the Gran Sasso National Underground Laboratory says that from 2008 to 20012 they have catched 5 muon neutrinos emitted at CERN that have changed flavor to tau neutrinos. This means that the neutrino has a mass, although a very small one, and they are trying to measure it.
Tullio

Neutrinos are very hard to detect.
Even though that the sun emits a lot of them.
Perhaps billions of those particles are passing through our bodies per second.
Still scientist have managed to detect a few after many years:)
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Message 1692503 - Posted: 17 Jun 2015, 6:32:32 UTC - in response to Message 1692239.  

This is how the neutrino was discovered. There was an inbalance in a beta decay and either energy was not conserved or there was an unknown particle in it. Now the Istituto Nazionale di Fisica Nucleare which manages the Gran Sasso National Underground Laboratory says that from 2008 to 20012 they have catched 5 muon neutrinos emitted at CERN that have changed flavor to tau neutrinos. This means that the neutrino has a mass, although a very small one, and they are trying to measure it.
Tullio

Neutrinos are very hard to detect.
Even though that the sun emits a lot of them.
Perhaps billions of those particles are passing through our bodies per second.
Still scientist have managed to detect a few after many years:)


The deeper underground, the better they can be detected.
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Message boards : Science (non-SETI) : Communication via a quantum loop gravity string?


 
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