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New particles
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Title: Study of multi-muon events produced in p-pbar collisions at sqrt(s)=1.96 TeV Authors: CDF Collaboration We report a study of multi-muon events produced at the Fermilab Tevatron collider and recorded by the CDFII detector. In a data set acquired with a dedicated dimuon trigger and corresp...
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White holes
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Kitchen sink experiment simulates exotic white holes Expensive particle colliders are not the only way to explore far-out physics. It seems that water gushing from a tap and hitting a sink behaves like a white hole - the theoretical opposite of a black hole. A black hole is a dense concentration of ma...
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E6 Unification
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Title: E6 Unification and the Hidden Sector of the Universe Authors: C.R. Das, L.V. Laperashvili, H.B. Nielsen, A. Tureanu A talk presents a new cosmological model with superstring-inspired E_6 unification, broken at the early stage of the Universe into SO(10) x U(1)_Z -- into the ordinary world...
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Radioactive isotopes
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The strange case of solar flares and radioactive elements When researchers found an unusual linkage between solar flares and the inner life of radioactive elements on Earth, it touched off a scientific detective investigation that could end up protecting the lives of space-walking astronauts a...
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Fermi National Accelerator Laboratory
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Most physicists at Illinois-based Fermilab, home to the world's most powerful particle collider, share a dream. They hope against hope that the Tevatron will find the long-sought Higgs particle before the much more powerful Large Hadron Collider (LHC) at CERN the European particle-physics lab...
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Ergodic theory
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Ergodic theory is a branch of mathematics that studies dynamical systems with an invariant measure and related problems. Its initial development was motivated by problems of statistical physics. A central concern of ergodic theory is the behaviour of a dynamical system when it is allowed to run f...
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Solid Helium
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High-quality, single-crystal, ultra-cold solid helium exhibits supersolid behaviour, suggesting that this frictionless solid flow is not a consequence of defects and grain boundaries in poor-quality, polycrystalline, solid helium, according to a team of Penn State researchers. In 2004, P...
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Extensive Air Showers
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Title: The observation of Extensive Air Showers from an Earth-Orbiting Satellite Authors: M. Pallavicini, R. Pesce, A. Petrolini, A. Thea In this paper we review the main issues that are relevant for the detection of Extensive Air Showers (EAS) from space. EAS are produced by the interaction of Ul...
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Nuclear explosions
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In a significant breakthrough, scientists have isolated an exotic radioactive gas which they claim would make it easier to detect underground nuclear tests from air samples. A global network of monitoring stations constantly samples the air for signs of underground nuclear tests. One thing the...
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Proton Radioactive Decay
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Radioactivity, discovered more than 100 years ago and studied by physicists ever since, would seem to be a relatively closed subject in science. However, since the 1960s, the pursuit of at least one open question about how nuclei spontaneously eject various particles has continued to nag experim...
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The atomic age
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How Ernest Rutherford ushered in the atomic age It was during a meeting of the Manchester Literary and Philosophical Society that the nuclear age was announced, on Tuesday, 7 March 1911, by Professor Ernest Rutherford, the 39-year-old head of physics at Manchester University. [url=http://www....
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T-rays
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New T-ray device to explore cosmic radiation A miniscule sensor could lead to a better understanding of the formation of new stars, planets, and the hole in the ozone layer by studying an obscure wavelength of radiation. Scientists at Delft University of Technology in the Netherlands have built th...
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Wormholes
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For budding time travellers, the future (or should that be the past?) is starting to look bleak. Hypothetical tunnels called wormholes once looked like the best bet for constructing a real time machine. These cosmic shortcuts, which link one point in the Universe to another, are fa...
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Hydrogen Production
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Scientists at Penn State and the Virginia Commonwealth University have discovered a way to produce hydrogen by exposing selected clusters of aluminium atoms to water. The findings are important because they demonstrate that it is the geometries of these aluminium clusters, rather than solely t...
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Thorium
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Named for the Norse god of thunder, thorium is a lustrous silvery-white metal. It's only slightly radioactive; you could carry a lump of it in your pocket without harm. On the periodic table of elements, it's found in the bottom row, along with other dense, radioactive substances - including uraniu...
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