Slashdot Mirror
Domain: llnl.gov
Stories and comments across the archive that link to llnl.gov.
Stories · 62
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ASCI White Detonates The First E-Bomb
totallygeek writes "Redefining the term vaporware, research scientists at Lost Alamos and Lawrence Livermore Labs detonated two computer simulations. ASCI White, the world's fastest supercomputer, ran the simulations of nuclear explosions. Scientists can now study nuclear weapon replacement components without violating the nuclear test ban, in effect since 1992. Each simulation used more than 6.6 million CPU hours, which would take home machines 1000 years to complete. The data for each experiment was equivalent to 35 times the information available in the Library of Congress. ASCI White currently operates at 12 teraflops, but by early next year, Los Alamos expects to operate at 30 teraflops. The seven month research project ended last Friday, and now the system is ready for use, after its sucessful testing." -
First 3D Simulations of Complete Nuclear Detonations
jhiv writes: "The National Nuclear Security Administration (NNSA) reports that 'Los Alamos and Lawrence Livermore national laboratories have completed the first full-system three-dimensional simulations of a nuclear weapon's explosion'. The simulations are two of the largest computer simulations ever attempted, each taking weeks to complete on the ASCI White supercomputer. The Los Alamos team used the ASCI Blue Mountain supercomputer to visualize the results. Additional coverage can be found in this story in the Albuquerque Journal." -
First 3D Simulations of Complete Nuclear Detonations
jhiv writes: "The National Nuclear Security Administration (NNSA) reports that 'Los Alamos and Lawrence Livermore national laboratories have completed the first full-system three-dimensional simulations of a nuclear weapon's explosion'. The simulations are two of the largest computer simulations ever attempted, each taking weeks to complete on the ASCI White supercomputer. The Los Alamos team used the ASCI Blue Mountain supercomputer to visualize the results. Additional coverage can be found in this story in the Albuquerque Journal." -
Carbon-Based Fuel Cells: Clean Coal?
UserID 3.14 writes: "I got this story from the Lawrence Livermore National Lab web site. The idea for carbon anode electrochemical cells has been around for a long time, but waste ash was always a problem. The new system uses very fine particulate carbon for full conversion to CO2. The CO2 has non-polluting industrial uses, including refilling the used up oil wells (so they don't collapse). Of course, the greatest benefit of the whole scheme is how it almost doubles power extraction efficiency (up to around 80%)." The article has some good information about the differences between the types of carbon found in nature, too. -
Carbon-Based Fuel Cells: Clean Coal?
UserID 3.14 writes: "I got this story from the Lawrence Livermore National Lab web site. The idea for carbon anode electrochemical cells has been around for a long time, but waste ash was always a problem. The new system uses very fine particulate carbon for full conversion to CO2. The CO2 has non-polluting industrial uses, including refilling the used up oil wells (so they don't collapse). Of course, the greatest benefit of the whole scheme is how it almost doubles power extraction efficiency (up to around 80%)." The article has some good information about the differences between the types of carbon found in nature, too. -
ASCI's Debutante Debut
yoshi writes "Apparently, Lawrence Livermore Lab had an open house yesterday for ASCI White, the world's most powerful computer, and CNN has a story on it, including a picture of one of the sys admins! One of the great things about the system is how much information is available. Check out the hardware and software environments." -
ASCI's Debutante Debut
yoshi writes "Apparently, Lawrence Livermore Lab had an open house yesterday for ASCI White, the world's most powerful computer, and CNN has a story on it, including a picture of one of the sys admins! One of the great things about the system is how much information is available. Check out the hardware and software environments." -
ASCI's Debutante Debut
yoshi writes "Apparently, Lawrence Livermore Lab had an open house yesterday for ASCI White, the world's most powerful computer, and CNN has a story on it, including a picture of one of the sys admins! One of the great things about the system is how much information is available. Check out the hardware and software environments." -
"Smart Probe" Detects Breast Cancer
xpccx writes: "I've seen in several scientific journals articles about a device called a 'Smart Probe.' It's a device from BioLuminate which is licensing technologies from NASA and the Lawrence Livermore National Laboratory. (Read more.)From the press release:
Sensors on the tip of the probe measure optical, electrical and chemical properties that are known to differ between healthy and cancerous tissues. The "Smart Probe" can detect multiple (5 to 7) known indicators of breast cancer. Tissue measurements are made in real time in both normal and suspect tissue.
I did a Google search and information can be found here(1), here(2) and here(3) amongst others.It's still an invasive procedure, but if it does work it would be a great relief to women who would normally go through unecessary biopsies. "In the U.S. each week, approximately 16,000 women undergo unnecessary, surgical breast biopsies on suspicious tissue that turns out benign.""
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"Smart Probe" Detects Breast Cancer
xpccx writes: "I've seen in several scientific journals articles about a device called a 'Smart Probe.' It's a device from BioLuminate which is licensing technologies from NASA and the Lawrence Livermore National Laboratory. (Read more.)From the press release:
Sensors on the tip of the probe measure optical, electrical and chemical properties that are known to differ between healthy and cancerous tissues. The "Smart Probe" can detect multiple (5 to 7) known indicators of breast cancer. Tissue measurements are made in real time in both normal and suspect tissue.
I did a Google search and information can be found here(1), here(2) and here(3) amongst others.It's still an invasive procedure, but if it does work it would be a great relief to women who would normally go through unecessary biopsies. "In the U.S. each week, approximately 16,000 women undergo unnecessary, surgical breast biopsies on suspicious tissue that turns out benign.""
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Low-power table-top fusion
SEWilco writes "Lawrence Livermore National Laboratory scientists described Tuesday producing fusion with a mere million-dollar machine. It was described at this APS Centennial session. Bursts of neutrons are detected, the hallmark of fusion that `cold fusion' was missing" Update: 03/27 02:27 by S : In somewhat related news, muggs wrote in about a new laser-based method for watching atoms bond. It relies on using X-ray diffraction patterns to locate the moving atoms. -
Internet Hoaxes
MacJedi sent us a link to a site that tracks Internet Hoaxes. I find this sorta thing interesting. Usenet Lore is also an interesting net phenom that entertains me excessively.