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52 matches found for "grains of crystal"

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University of Georgia researchers show component of mothballs is present in deep-space clouds

Well, not exactly, but researchers from the University of Georgia have just shown for the first time that one component of clouds emitting unusual infrared light know as the Unidentified Infrared Band...

Physics and Astronomy | nachricht Read more
Andes Mountains are older than previously believed

The geologic faults responsible for the rise of the eastern Andes mountains in Colombia became active 25 million years ago—18 million years before the previously accepted start date for the Andes'...

Earth Sciences | nachricht Read more
PolyU spearheads research in nanostructured materials

The Hong Kong Polytechnic University (PolyU) has recently received research funding totaling more than $9 million from the Research Grants Council (RGC), the Innovation and Technology Fund (ITF) and i...

Materials Sciences | nachricht Read more
A new X-ray spectroscopic tool for probing the interstellar medium

Astronomy & Astrophysics is publishing the first clear detection of signatures long sought in the spectra of X-ray astronomical sources, the so-called EXAFS signatures, standing for “Extended X-ray Ab...

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Taking the stress out of magnetic field detection

This material could lead to greatly improved magnetic sensors for a wide range of applications from weapons detection and non-destructive testing to medical devices and high-performance data storage....

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Uncovering the Real Dirt on Granular Flow

By solving large sets of differential equations, researchers can predict how sand or other granular material will move. Assistant Professor Dan Negrut and his team at the University of Wisconsin-Madis...

Information Technology | nachricht Read more
The European Synchrotron radiation facility launches an ambitious Upgrade Programme

On 24-25 November 2008, the 50th Council meeting of the ESRF approved a 10% budget increase for 2009, to start a 177 million Euros Upgrade Programme over the next seven years (2009-2015). The main ele...

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Very Cold Ice Films in Laboratory Reveal Mysteries of Universe

The universe is full of water, mostly in the form of very cold ice films deposited on interstellar dust particles, but until recently little was known about the detailed small scale structure. ...

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Bacteria cause old buildings to feel off color

The assumption that time, weather, and pollution are what cause buildings to decline is only partly true. Bacteria are also responsible for the ageing of buildings and monuments - a process kn...

Life Sciences | nachricht Read more
Scientist proposes explanation for puzzling property of night-shining clouds at the edge of space

An explanation for a strange property of noctilucent clouds--thin, wispy clouds hovering at the edge of space at 85 km altitude--has been proposed by an experimental plasma physicist at the California...

Earth Sciences | nachricht Read more
New Research Shows Why Metal Alloys Degrade

Metal alloys are solids made from at least two different metallic elements. The elements are often mixed together as liquid, and when they "freeze," into solids, tiny grains of crystal form ...

Materials Sciences | nachricht Read more
Comet dust reveals unexpected mixing of solar system

A new analysis of dust from the comet Wild 2, collected in 2004 by NASA's Stardust mission, has revealed an oxygen isotope signature that suggests an unexpected mingling of rocky material between...

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First full 3D view of cracks growing in steel

By using a new grain mapping technique it was possible to determine the internal 3D structure of the material without destroying the sample. Afterwards, a crack was initiated in the stainless steel, a...

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Food inspection technology could kill waiter jokes

Finding a snail in a salad, a fish bone in a supposedly boneless fillet or opening a soup packet to reveal mouldy contents is an unpleasant – and potentially unsafe – experience. Small foreign bodies ...

Health and Medicine | nachricht Read more
Unravelling the "inconvenient truth" of glacier movement

This in turn requires greater understanding of the processes at work when ice is under stress, influencing how it flows and moves. The immediate objective is to model the flow of ice sheets and glacie...

Earth Sciences | nachricht Read more
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