Category Archives: Science

Researchers predict material with record-setting melting point

Using advanced computers and a computational technique to simulate physical processes at the atomic level, researchers at Brown University have predicted that a material made from hafnium, nitrogen, and carbon would have the highest known melting point, about two-thirds the temperature at the surface of the sun. (more…)

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Research in the news: The search for exceptional rings

Optics research just got a bit more exceptional, and the world may benefit.

Physicists have long known about the existence of isolated “exceptional points” — unique points where two physical states coalesce into one. Exceptional points give rise to counterintuitive phenomena; a more opaque material can seem more transparent, and light may be allowed to propagate in one direction but not the other. (more…)

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Radiation Safety for Sunken-Ship Archaeology

Berkeley Lab researchers help scientists determine the radiation risk of exploring an underwater aircraft carrier.

About 42 miles southwest of San Francisco and 2,600 feet underwater sits the U.S.S. Independence, a bombed-out relic from World War II. The aircraft carrier was a target ship in atomic weapon tests at Bikini Atoll in the Marshall Islands after the war. Then, in 1951, it was loaded up with 55-gallon drums of low-level radioactive waste and scuttled just south of the Farallon National Wildlife Refuge off the California coast. (more…)

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Symbiotische Schwefelbakterien verlassen das sinkende Schiff

Kreislauf zwischen Aufnahme von Schwefelbakterien in Larven der Riesenröhrenwürmer und Verlassen des toten Wirts entschlüsselt

Hydrothermale Quellen in Vulkankratern der Tiefsee sind schnell vergänglich. Am ostpazifischen Rücken entstehen und versiegen solche Quellen innerhalb weniger Jahre. Riesenröhrenwürmer finden neue Quellen extrem schnell, wachsen innerhalb eines Jahres mehr als einen Meter und sterben wenige Jahre danach. Dieses Schicksal teilen sie aber nicht mit ihren bakteriellen Symbionten, die tief im Inneren des Wirtskörpers leben. Wie ein internationales ForscherInnenteam unter der Leitung der Meeresbiologin Monika Bright von der Universität Wien entdeckte, verlassen die Schwefelbakterien ihren toten Wirt und vermehren sich im Freien. Die Ergebnisse dazu erscheinen aktuell in der Fachzeitschrift “Proceedings of the National Academy of Science”. (more…)

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After 85-year search, massless particle with promise for next-generation electronics discovered

An international team led by Princeton University scientists has discovered an elusive massless particle theorized 85 years ago. The particle could give rise to faster and more efficient electronics because of its unusual ability to behave as matter and antimatter inside a crystal, according to new research. (more…)

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Treating aortic aneurysms through virtual reality

Virtual models can be created in the angiography room thanks to an approach developed by researchers at the University of Montreal Hospital Research Centre (CRCHUM) and the university’s departments of radiology, radiation oncology, and nuclear medicine. The latest advances were presented by Dr. Gilles Soulez at the Cardiovascular and Interventional Radiology Society of Europe (CIRSE) conference on September 27, 2015. (more…)

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Lösungen von flüssig bis glasartig

Neues Modellsystem ermöglicht fine tuning von Kolloid-Rezepturen

WissenschafterInnen des Forschungszentrums Jülich, Deutschland, haben gemeinsam mit einem internationalen Team, unter ihnen Christos Likos, Physiker an der Universität Wien, ein Modellsystem für weiche Kolloide entwickelt. Damit können Zusammenhänge zwischen der atomaren Struktur von Teilchen oder Tröpfchen in Flüssigkeiten – sogenannter Kolloide – und ihren Materialeigenschaften besser verstanden werden. Die Ergebnisse, die aktuell in der Fachzeitschrift Nanoscale publiziert wurden, liefern neue Ansätze zur Entwicklung innovativer Kolloidmaterialien. (more…)

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UChicago researchers develop artificial, bonelike material for use with medical devices

Researchers have developed a new approach for better integrating medical devices with biological systems. The researchers, led by Bozhi Tian, assistant professor in chemistry at the University of Chicago, have developed the first skeleton-like silicon spicules ever prepared via chemical processes. (more…)

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