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Latest Lawrence Livermore National Laboratory Stories

Roadrunner Supercomputer Decommissioned On Sunday
2013-04-01 04:29:31

redOrbit Staff & Wire Reports - Your Universe Online The first supercomputer to complete one quadrillion calculations per second has been officially decommissioned, going offline Sunday after being operational for the past five years. The computer, which was known as Roadrunner, was built by IBM and went online in 2008. The $120 million Roadrunner quickly became the fastest supercomputer on Earth (a title it held until November 2009). It´s success was largely due to technology...

NRL Nike Laser Focuses On Nuclear Fusion
2013-03-20 15:20:24

U.S. Naval Research Laboratory Researchers at the U.S. Naval Research Laboratory have successfully demonstrated pulse tailoring, producing a time varying focal spot size known as 'focal zooming' on the world's largest operating krypton fluoride (KrF) gas laser. The Nike laser is a two to three kilojoule (kJ) KrF system that incorporates beam smoothing by induced spatial incoherence (ISI) to achieve one percent non-uniformity in single beams and 0.16 percent non-uniformity for 44...

Record Simulations Performed On Lawrence Livermore Supercomputer
2013-03-20 08:30:42

Lawrence Livermore National Laboratory Researchers at Lawrence Livermore National Laboratory have performed record simulations using all 1,572,864 cores of Sequoia, the largest supercomputer in the world. Sequoia, based on IBM BlueGene/Q architecture, is the first machine to exceed one million computational cores. It also is No. 2 on the list of the world's fastest supercomputers, operating at 16.3 petaflops (16.3 quadrillion floating point operations per second). The simulations are...

2013-03-05 10:35:15

Human activities are not the primary cause of arsenic found in groundwater in Bangladesh. Instead, a team of researchers from Lawrence Livermore National Laboratory, Barnard College, Columbia University, University of Dhaka, Desert Research Institute and University of Tennessee found that the arsenic in groundwater in the region is part of a natural process that predates any recent human activity, such as intensive pumping. The results appear in the March 4 edition of the Proceedings...

2013-02-28 08:23:45

LIVERMORE, Calif., Feb. 28, 2013 /PRNewswire/ -- The City of Livermore will launch a bold plan to dramatically reduce citywide energy costs and save taxpayers more than $10 million over the next 25 years. (Photo: http://photos.prnewswire.com/prnh/20130228/CG67186) With the help of Chevron Energy Solutions, the city will be incorporating solar installations to generate clean, renewable power for the city's Civic Center, main library, airport, and other municipal facilities....

2013-02-20 15:40:32

Potential benefits of inertial fusion energy justify continued R&D; nationally coordinated program should wait until ignition is achieved The potential benefits of successful development of an inertial confinement fusion-based energy technology justify investment in fusion energy research and development as part of the long-term U.S. energy R&D portfolio, says a new report from the National Research Council. Although ignition of the fusion fuel has not yet been achieved, scientific...

2013-01-29 10:14:54

A new way of looking at a cell's surface reveals the distribution of small molecules in the cell membrane, changing the understanding of its organization. A novel imaging study by researchers from Lawrence Livermore National Laboratory, the University of Illinois and the National Institutes of Health revealed some unexpected relationships among molecules within cell membranes. Their findings provide a new way of studying cell structure and ultimately its function. Led by Mary Kraft...

Is Oxygen's Role In Core Formation Underestimated?
2013-01-11 09:37:25

redOrbit Staff & Wire Reports - Your Universe Online The Earth´s core formed under more oxidizing conditions than previously believed, claims a new study published in Thursday´s edition of the journal Science Express. Lawrence Livermore National Laboratory (LLNL) geophysicist Rick Ryerson and an international team of colleagues made the discovery following a series of laser-heated diamond anvil cell experiments at high pressure (350,000 to 700,000 atmospheres) and...

2013-01-09 05:03:54

Pwnie Express, Leader in Innovative Pentesting Products Joins Leaders in Government and Academia at Department of Energy's Oak Ridge National Laboratory to Discuss Cyber Security. Oak Ridge, TN (PRWEB) January 08, 2013 Vermont-based Pwnie Express, leader in innovative penetration testing products, will be a Silver Sponsor at this year´s Cyber Security and Information Intelligence Research Workshop (CSIIRW) held at Oak Ridge National Laboratory on January 8-10, 2013. The conference...

Dark Matter Detector Gets Helping Hand From Livermore Team
2012-11-16 05:58:38

April Flowers for redOrbit.com - Your Universe Online Nearly a mile underground beneath the Black Hills of South Dakota, scientists from Lawrence Livermore National Laboratory (LLNL) are using a tank to make key contributions to a physics experiment that will look for one of nature's most elusive particles, "dark matter." The Large Underground Xenon (LUX) experiment located at the Sanford Underground Research Facility in Lead, SD is the most sensitive detector of its kind to look for...


Latest Lawrence Livermore National Laboratory Reference Libraries

6_da99fb8ccd6eba27f4bcf7590775bd272
2004-10-19 04:45:41

Massive Compact Halo Object (MACHO) -- Massive compact halo objects, or MACHOs, are a type of astronomical body proposed as one possible explanation for the presence of dark matter in galactic halos. A MACHO is a small chunk of normal baryonic matter, far smaller than a star, which drifts through interstellar space unassociated with any solar system. Since MACHOs would not emit any light of their own, they would be very hard to detect. Recent work has suggested that MACHOs are not...

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