Science / Technology / Engineering

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Why huge bands of iron formed billions of years ago on Earth’s surface

November 19, 2009 • Ironing out a longstanding geological puzzle ALBUQUERQUE, N.M. — No one knows why massive formations of banded iron — some ultimately hundreds of kilometers long, like a sleeping giant’s suspenders — mysteriously began precipitating on Earth’s surface about 3.5 billion years ago. Or why, almost 2 billion years later, the...
Yifeng Wang holds a piece of banded iron during a visit to an aquarium. Wang and colleagues have proposed an explanation -- published recently in Nature Geoscience -- for the precipitation of banded iron deposits in the planets oceans billions of years ago.

Sandia announces completion of mixed waste landfill cover construction

November 2, 2009 • ALBUQUERQUE, N.M. – The Environmental Restoration Project at Sandia National Laboratories reports the successful construction of an alternative evapotranspirative cover at the Mixed Waste Landfill (MWL) in September. The 2.6-acre site is located in Technical Area 3 in the west-central part of Kirtland Air Force Base. The protective cover consists...
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Magnetic mixing creates quite a stir

October 27, 2009 • ALBUQUERQUE, N.M. – Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces. Researchers currently use all types of processes to try and create mixing, with only “mixed” success. “In small devices,” says Sandia materials scientist Jim Martin “people have tried all kinds...
KYLE SOLIS (in photo at left), a graduate student intern in Nanomaterials Sciences Dept. 1112, prepares a sample for mixing using a new approach called vortex field mixing, developed by researchers in his organization. (Photo by Randy Montoya)

Sandia hopping robots to bolster troop capabilities

September 11, 2009 • ALBUQUERQUE, N.M. — Boston Dynamics, developer of advanced dynamic robots such as BigDog and PETMAN, has been awarded a contract by Sandia to develop the next generation of the Precision Urban Hopper, meaning Sandia‘s hopping robots may soon be in combat. When fully operational, the four-wheeled hopper robots will navigate...
Jon Salton, left, and Steve Buerger put the Precision Urban Hopper through its paces. (Photo by Randy Montoya) Download 300dpi 4.27MB JPEG image (Media are welcome to download/publish this image with related news stories.)

Purer water made possible by Sandia advance

July 21, 2009 • A single atom makes a big difference ALBUQUERQUE, N.M. — By substituting a single atom in a molecule widely used to purify water, researchers at Sandia National Laboratories have created a far more effective decontaminant with a shelf life superior to products currently on the market. Sandia has applied for...
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Sandia wins five R&D 100 awards

July 20, 2009 • ALBUQUERQUE, N.M. — Sandia National Laboratories researchers — competing in an international pool that includes universities, start-ups, large corporations, and government labs — received five R&D 100 Awards this year, and played a role in a sixth. R&D Magazine presents the awards each year to researchers who have developed the...
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Salt block unexpectedly stretches in Sandia experiments

June 22, 2009 • Nanoscopic discovery may have implications for smog, asthma, cloud formation ALBUQUERQUE, N.M. — To stretch a supply of salt generally means using it sparingly. But researchers from Sandia National Laboratories and the University of Pittsburgh were startled when they found they had made the solid actually physically stretch. “It’s not...

“Microswimmer” and extremely tiny testing tool are big winners at Sandia student MEMS contest

June 9, 2009 • ALBUQUERQUE, N.M. —A “microswimmer” about the diameter of a human hair won the “novel design” category of the fifth annual Sandia National Laboratories-sponsored MEMS University Alliance Design Competition. The microswimmer, which resembles a tiny fish, is designed to have an aluminum tail that whips back and forth from being heated...

Sandia signs MOU with Japanese national institute

May 26, 2009 • ALBUQUERQUE, N.M. — Sandia National Laboratories and Japan’s National Institute of Advanced Industrial Science and Technology have signed an agreement to conduct and share research of mutual interest. Areas of immediate importance named in the memorandum of understanding include photovoltaics, nanoelectronics, nanomaterials and computational investigations of the properties of materials....

Sandia receives DoD “trusted design” accreditation

March 14, 2009 • ALBUQUERQUE, N.M. — Sandia National Laboratories has received accreditation to provide “trusted design” services for both unclassified and classified integrated circuits at its Albuquerque, N.M., facility. Sandia’s Category 1A status was awarded through the Trusted IC Supplier Accreditation Program (www.dmea.osd.mil/trustedic.html) of the Department of Defense (DoD)’s Defense MicroElectronics Activity (DMEA)...

Huge pressures that melt diamonds on planet Neptune determined by Sandia researchers – February 17, 2009

February 17, 2009 • Technique may provide data for NIF nuclear fusion effort ALBUQUERQUE, N.M. — The enormous pressures needed to melt diamond to slush and then to a completely liquid state have been determined ten times more accurately by Sandia National Laboratories researchers than ever before. As a bonus to science, researchers Marcus...

More chip cores can mean slower supercomputing, Sandia simulation shows

January 12, 2009 • 16 multicores perform barely as well as two for complex applications ALBUQUERQUE, N.M. — The worldwide attempt to increase the speed of supercomputers merely by increasing the number of processor cores on individual chips unexpectedly worsens performance for many complex applications, Sandia simulations have found. A Sandia team simulated key...
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Results 576–600 of 1,205