A chemical reaction is a rearrangement of atoms in and between molecules, the breaking of old and the formation of new bonds. The glue that binds atoms in molecules and creates the bonds between them is made out of valence electrons. Scientists were able to show theoretically that the ultrafast x-ray camera is not only sensitive to inert core electrons but may also visualize the motion of chemically active valence electrons.
Dec 5th, 2014
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Mit atomistischen Simulationen ist es Forschern gelungen, das Verhalten einer Graphenschutzschicht auf Platin (111) unter verschiedenen Anpressdr�cken auf atomarer Ebene pr�zise abzubilden.
Dec 5th, 2014
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The behaviour of iron oxide surfaces has startled scientists for years. New research shows that everybody has been thinking about them all wrong.
Dec 5th, 2014
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Scientists use X-ray laser as ultra slow-motion camera.
Dec 4th, 2014
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For the first time, scientists have discovered how to produce ultra-thin diamond nanothreads that promise extraordinary properties, including strength and stiffness greater than that of today's strongest nanotubes and polymers.
Dec 4th, 2014
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Controlled emission and spatial splitting of electron pairs demonstrated.
Dec 4th, 2014
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Biologists show death has no impact on strength geckos use to adhere to surfaces.
Dec 3rd, 2014
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A new electrode design for lithium-ion batteries has been shown to potentially reduce the charging time from hours to minutes by replacing the conventional graphite electrode with a network of tin-oxide nanoparticles.
Dec 3rd, 2014
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Groundbreaking wireless material triggers brain activity in response to light.
Dec 3rd, 2014
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An electronic 'tongue' could one day sample food and drinks as a quality check before they hit store shelves. Or it could someday monitor water for pollutants or test blood for signs of disease.
Dec 3rd, 2014
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For years, scientists have been pursuing 'artificial leaf' technology, a green approach to making hydrogen fuel. Now, one team reports progress toward a stand-alone system that lends itself to large-scale, low-cost production.
Dec 3rd, 2014
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Coffee, apple juice, and vitamin C: things that people ingest every day are experimental material for chemist Eva-Maria Felix.
Dec 3rd, 2014
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Environmentally friendly material targets flue gases, wells.
Dec 3rd, 2014
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Though it is less than 100 nanometers thick, the bond can withstand pressure up to 2 megapascals (almost 300 pounds per square inch), and its drift, or how much it shifts over time, is on the order of less than 3 trillionths of a meter per hour.
Dec 3rd, 2014
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Researchers have achieved a breakthrough: Reproducible synthesis of gallium-nitride nanowires with controlled size and location on silicon substrates.
Dec 3rd, 2014
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Engineers computer-design the most complicated 3-D structures ever made from DNA.
Dec 3rd, 2014
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