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Communication via a quantum loop gravity string?
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tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
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. 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. Tullio |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
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". Tullio |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
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William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
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 ? |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
0.4 percent margin of error. 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. |
Es99 Send message Joined: 23 Aug 05 Posts: 10874 Credit: 350,402 RAC: 0 |
... He was a lecturer when I was there. I remember him. Reality Internet Personality |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
... 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 |
Darth Beaver Send message Joined: 20 Aug 99 Posts: 6728 Credit: 21,443,075 RAC: 3 |
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 . |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
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. |
tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
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 |
janneseti Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 |
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. 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:) |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
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. The deeper underground, the better they can be detected. rOZZ Music Pictures |
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