CERN completes transition to lead-ion running at the LHC

Posted by SpaceMan in CERN on 11 20th, 2010 | no responses

CERN completes transition to lead-ion running at the LHC CERN : Le LHC passe aux ions lourds www.cern.ch

LHC Sets Collision Record – New Era For Particle Physics

Posted by SpaceMan in CERN on 06 30th, 2010 | no responses

CERN News: The Large Hadron Collider (LHC) sets collision record – new era in the history of particle physics. Spotlight on CERN – LHC First Physics — On March 30th 2010, first high-energy collisions took place at 7 TeV in the LHC, creating a phenomenal quantity of data. This not only marked the start of a new era for particle physics but also presents an enormous challenge in the field of computing, in terms of data transfer, storage and processing. — Please subscribe to Science & Reason: • www.youtube.com • www.youtube.com • www.youtube.com — The Large Hadron Collider (LHC) is the world’s largest and highest-energy particle accelerator, a synchrotron intended to collide opposing particle beams of either protons at an energy of 7 trillion electronvolts (1.12 microjoules) per particle, or lead nuclei at an energy of 574 TeV (92.0 µJ) per nucleus. The term hadron refers to particles composed of quarks. It is expected that it will address the most fundamental questions of physics, advancing our understanding of the deepest laws of nature. The LHC lies in a tunnel 27 kilometres (17 mi) in circumference, as much as 175 metres (574 ft) beneath the Franco-Swiss border near Geneva, Switzerland. The Large Hadron Collider was built by the European Organization for Nuclear Research (CERN) with the intention of testing various predictions of high-energy physics, including the existence of the hypothesized Higgs boson and of the large family of new particles predicted by …

Tags: physics, Boson, Collisions, records

Interacting Galaxies Galore

Posted by SpaceMan in Hubble Space Telescope on 05 1st, 2010 | no responses

Hubble’s Universe Unfiltered (1): Interacting Galaxies – Cosmic Collisions Galore. Hubble celebrated its 18th anniversary by releasing a huge image gallery of interacting galaxies. Such galaxies pass close enough to each other that their mutual gravity can stretch and distort their shapes. Eventually, interacting galaxies merge together to form a single larger galaxy. However, since these interactions can take billions of years, how do we study them? And how do we make sense of the variety of strange shapes seen in these Hubble images? — Subscribe to Science & Reason: • www.YouTube.com • www.YouTube.com — Astronomy textbooks typically present galaxies as staid, solitary, and majestic island worlds of glittering stars. But galaxies have a dynamical side. They have close encounters that sometimes end in grand mergers and overflowing sites of new star birth as the colliding galaxies morph into wondrous new shapes. In celebration of the Hubble Space Telescope’s 18th launch anniversary, 59 views of colliding galaxies constitute the largest collection of Hubble images ever released to the public. This new Hubble atlas dramatically illustrates how galaxy collisions produce a remarkable variety of intricate structures in never-before-seen detail. Notes: • Hubble was launched into orbit on April 24, 1990, aboard the space shuttle Discovery. However, there is a lot more to its history than just 18 years (so far) of cutting edge science. Take a look at Hubble Essentials for more …

Tags: Cast, Collisions, discovery, Astronomers