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Sustainability challenged as many renewable resources max out

January 16, 2015 4:18 pm | by EurekAlert! | News | Comments

The days of assuming natural resources can be swapped in and out to solve shortages - corn for oil, soy for beef - may be over. An international group of scientists demonstrate that many key resources have peaked in productivity, pointing to the sobering ...

Race of the electrons

January 16, 2015 4:16 pm | by EurekAlert! | News | Comments

It is easy to measure electric current. But it is extremely hard to watch the individual electrons which make up this current. Electrons race through the metal with a speed of several million meters per second, and the distance they have to cover between two adjacent atoms ...

New study finds meteorites were byproducts of planetary formation

January 16, 2015 4:10 pm | by EurekAlert! | News | Comments

Meteors that have crashed to Earth have long been regarded as relics of the early solar system. These craggy chunks of metal and rock are studded with chondrules -- tiny, glassy, spherical grains that were once molten droplets. Scientists have thought that ...

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Ultra-realistic radiation detection training without using radioactive materials

January 16, 2015 4:04 pm | by EurekAlert! | News | Comments

Training of first responders on the hazards of actual radiological and nuclear threats has been challenged by the difficulties of adequately representing those threats. Training against such threats would involve using hazardous, highly radioactive materials, experiencing ...

How fast do electrons move through single atomic layers?

January 16, 2015 3:59 pm | by EurekAlert! | News | Comments

The time frames, in which electrons travel within atoms, are unfathomably short. For example, electrons excited by light change their quantum-mechanical location within mere attoseconds - an attosecond corresponds to a billionth of a billionth of ...

Charge ordering in electron-doped copper-oxide crystals

January 16, 2015 3:51 pm | by EurekAlert! | News | Comments

Researchers have spotted charge ordering - a phenomenon that interferes with superconductivity - in electron-doped copper-oxide crystals for the first time. The discovery is a critical step towards achieving zero electrical resistance at room temperature....

Charge instability detected across all types of copper-based superconductors

January 16, 2015 3:46 pm | by EurekAlert! | News | Comments

Superconductors made of copper-oxide ceramics called cuprates are capable of conducting electricity without resistance at record-high temperatures--but still only at about one-third of room temperature. They also require cooling with liquid nitrogen, which is not ...

University of Kentucky team wins student design competition

January 16, 2015 3:14 pm | by Fluke Corporation | News | Comments

The team from the University of Kentucky has been chosen the winner of the Fluke Connect™ Student Contest, which tested the skills, innovation, and business application of student teams enrolled in two and four year colleges, universities, trade/tech schools, and apprenticeship programs.

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Argonne model analyzes biofuel impacts

January 16, 2015 2:46 pm | by EurekAlert! | News | Comments

A new version of an online tool created by the U.S. Department of Energy's Argonne National Laboratory will help biofuels developers gain a detailed understanding of water consumption of various types of feedstocks, aiding development of ...

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Breakthrough lights up metamaterials

January 16, 2015 1:56 pm | by EurekAlert! | News | Comments

A City College of New York led-team has successfully demonstrated how to both enhance light emission and capture light from metamaterials embedded with light emitting nanocrystals. The breakthrough, headed by physicist Dr. Vinod Menon, could lead to ...

Software that calculates everyday risks

January 16, 2015 1:41 pm | by EurekAlert! | News | Comments

Imagine that you could tell your phone that you want to drive from your house in Boston to a hotel in upstate New York, that you want to stop for lunch at an Applebee's at about 12:30, and that you don't want the trip to take more than four hours. Then imagine ...

Solving an organic semiconductor mystery

January 16, 2015 1:34 pm | by EurekAlert! | News | Comments

Organic semiconductors are prized for light emitting diodes (LEDs), field effect transistors (FETs) and photovoltaic cells. As they can be printed from solution, they provide a highly scalable, cost-effective alternative to silicon-based devices. Uneven performances ...

Carbon nanotube finding could lead to longer-lasting flexible electronics

January 16, 2015 1:27 pm | by EurekAlert! | News | Comments

University of Wisconsin-Madison materials engineers have made a significant leap toward creating higher-performance electronics with improved battery life -- and the ability to flex and stretch. Led by materials science Associate Professor Michael Arnold ...

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Technological replacement for bulk data collection doesn't exist

January 16, 2015 1:24 pm | by EurekAlert! | News | Comments

No software-based technique can fully replace the bulk collection of signals intelligence, but methods can be developed to more effectively conduct targeted collection and to control the usage of collected data, says a new report from the National Research ...

Don’t shake it like a Polaroid picture?

January 16, 2015 1:19 pm | by Meaghan Ziemba, Editor, WDD, @MZiembaWDD | Blogs | Comments

The Polaroid camera was my favorite camera growing up, all because of the required shake needed to expose the picture after it was taken. My friends and I took multiple photos and traded them like baseball cards when we hung out. We even wrote silly ...

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