When Clusters Collide
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s collisions go, the one taking place in the vicinity of the constellation Hydra is a doozy. Out there, some 800 million light-years from Earth, two galactic clusters - one with about 1,000
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Rare fragile particles are merged with ordinary electrons to create a new form of matter.
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A team of astronomers, whose leader teaches at the University of Hawaii, has observed a head-on collision of two galaxy clusters, in which trillions of stars have been smashed together.
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Bullet is a state-of-the-art 3D Collision Detection and Rigid Body Dynamics Library for games. ZLib license, free for commercial use, including Playstation 3. Supports COLLADA Physics. Visit forum at http://bulletphysics.com for support and feedback   - removed STL from the Bullet library: replace std::vector by btAlignedObjectArray. Also removed the std::set for overlapping pair set, and turned it into an overlapping pair array. The SAP only adds objects, never removed. Removal is postponed for during traversal of overlapping pairs (duplicates and non-overlapping pairs are removed during that traversal).  - added heap sort and binary search/linear search to btAlignedObjectArray  - compressed AABB tree: 16 bytes per node, quantized aabb, with 32-bits indices. This helps reduce memory usage of large triangle meshes, with improved performance. See Demos/ConcaveDemo  - COLLADA import improvements. See Demos/ColladaDemo.  - Improved performance for convex polyhedral shapes. The local AABB is cached, instead of re-computed each frame. This caused a major slowdown for larger scenes, in particular .bsp levels with many convex hulls.   See: https://sourceforge.net/bullet
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This animation illustrates a massive collision between rocky, embryonic planets as big as mountain ranges. Such collisions form the basis of the planet-building process.
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It is assumed that the death toll would further increase. The collision occurred at the Hoshiyarpur district in Jalandhar at the Pathankot railway section where an express and local train collided together near the Mansar village.
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Near collisions between planes on the ground is increasing, according to a document seen by the BBC.
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Editors: Shlomo Reifman and Samantha N. Wong Researchers: Joshua Brandt, Fei Mei Chan,  Andrew T. Gillies, Soo Jeong, Edward Knudsen,  Artie Kwok, John Ray and Jody Yen Programmer: Carl Subick
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in clusters. Users enter search terms the same way as in any search engine, but the results are different.
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This whitepaper will provide information on using Veritas&trade; Cluster Server to increase application availability in a cost-effective way. It will provide an overview of the history of clustering solutions in the open systems market and detail how Veritas clustering differs from other solutions in the control of larger, more cost-effective clusters.
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Getting nanoparticles to stick together in the right ways could be the key to controlling the self-assembly of structures and materials.
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By AARON C. DAVIS  By Aaron C. Davis  The Associated Press   MEYERS, Calif.
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Does the rising number of crashes require a change in strategy?
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The world's biggest collider hopes to create a smorgasbord of exotic particles, from the so-called God particle to dark matter and maybe even miniature black holes. John Borland goes to the edge of theory.
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An international team of scientists have discovered a head-on collision of two galaxy clusters, one of the most powerful collisions ever documented, China Radio International reported Saturday.
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Imagine two stars with winds so intense that they eject an Earthâs worth of material roughly once every month. Next, imagine those two winds colliding head-on. Such titanic collisions produce multimillion-degree gas, which radiates brilliantly in X-rays.
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Designs for an ambitious particle-smasher are finalized. U.S. researchers hope the International Linear Collider could boost the U.S.'s flagging scientific fortunes. By John Borland.