Latest Lawrence Livermore National Laboratory Stories

Climatologists Predict More Extreme Summer Temperatures in 21st Century
2012-02-16 14:32:07

A new report published by an American non-profit research center says that extreme summer temperatures are becoming increasingly commonplace in the United States, a trend that they project will continue throughout the 21st century. Climatologist Phil Duffy led a group of researchers at the Lawrence Livermore National Laboratory (LLNL) in California in analyzing the results of various climate models examining the occurrence of extreme high temperatures in the summer months of June, July and...

High-Pressure Phase Changes Could Play Role In Exoplanet Formation
2012-02-12 05:37:38

Phase transitions in liquid magmas at the pressure and temperature levels that exist deep within Earth-like planets could play a role in the formation of new worlds, according to a new research put forth by experts at California's Lawrence Livermore National Laboratory (LLNL). According to a Friday UPI article, the process is similar to the way that graphite, when placed in high-pressure conditions, can transform into diamonds. In much the same way, the LLNL researchers assert that molten...

Models Help Define Exoplanet Structure
2012-02-02 04:28:37

Using models similar to those used in weapons research, scientists may soon know more about exoplanets, those objects beyond the realm of our solar system. In a new study, Lawrence Livermore National Laboratory scientists and collaborators came up with new methods for deriving and testing the equation of state (EOS) of matter in exoplanets and figured out the mass-radius and mass-pressure relations for materials relevant to planetary interiors. Astronomers started detecting exoplanets...

2012-01-26 13:18:34

Lab scientists and international collaborators have created the shortest, purest X-ray laser pulses ever achieved, fulfilling a 45-year-old prediction and ultimately opening the door to new medicines, devices and materials. The researchers, reporting today (Jan. 26) in Nature, aimed radiation from the Linac Coherent Light Source (LCLS), located at the Stanford Linear Accelerator Center (SLAC), at a cell containing neon gas, setting off an avalanche of X-ray emissions to create a new...

Image 1 - Power Generation Is Blowing In The Wind
2012-01-18 05:21:30

By looking at the stability of the atmosphere, wind farm operators could gain greater insight into the amount of power generated at any given time. Power generated by a wind turbine largely depends on the wind speed. In a wind farm in which the turbines experience the same wind speeds but different shapes, such as turbulence, to the wind profile, a turbine will produce different amounts of power. This variable power can be predicted by looking at atmospheric stability, according to...

Lawrence Livermore Ramps Up Wind Energy Research
2011-12-15 04:30:03

As the percentage of wind energy contributing to the power grid continues to increase, the variable nature of wind can make it difficult to keep the generation and the load balanced. But recent work by Lawrence Livermore National Laboratory, in conjunction with AWS Truepower, may help this balance through a project that alerts control room operators of wind conditions and energy forecasts so they can make well-informed scheduling decisions. This is especially important during extreme...

Names Chosen For Elements 114 And 116
2011-12-02 12:22:03

On Thursday, the International Union of Pure and Applied Chemistry (IUPAC) proposed new names for elements 114 and 116. A collaboration of scientists from the Joint Institute for Nuclear Research in Dubna and the Lawrence Livermore National Laboratory (LLNL) said that the name Flerovium for element 114 and Livermorium for element 116 were chosen to fit the latest heavy elements. The IUPAC officially accepted elements 114 and 116 as the heaviest elements in June 2011, ten years since...

Separating Signal And Noise In Climate Warming
2011-11-19 04:19:22

In order to separate human-caused global warming from the "noise" of purely natural climate fluctuations, temperature records must be at least 17 years long, according to climate scientists. To address criticism of the reliability of thermometer records of surface warming, Lawrence Livermore National Laboratory scientists analyzed satellite measurements of the temperature of the lower troposphere (the region of the atmosphere from the surface to roughly five miles above) and saw a clear...

2011-11-14 16:00:00

LLNL, LANL and Sandia initiate 2PetaFlop/s Xtreme-Xâ“ž¢ Supercomputer deployment based on the Intel® Xeon® processor E5 Family Seattle, CA (PRWEB) November 14, 2011 Appro (http://www.appro.com), a leading provider of supercomputing solutions, announces today that the three U.S. national laboratories under contract with the US Department of Energyâs National Nuclear Security Administration (NNSA) initiated deployment of the next-generation,...

Latest Lawrence Livermore National Laboratory Reference Libraries

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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Word of the Day
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.