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Secrets of Space

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Superconductor survives ultra-high magnetic field

Physicists from the universities of Groningen and Nijmegen (the Netherlands) and Hong Kong have discovered that transistors made of ultrathin layers molybdeendisulfide (MoS2) are not only superconducting at low temperatures but also stay superconducting in a high magnetic field. This is a unique phenomenon with exciting promises for the future. The experiments were the first to have been performed at the High Field Magnet Laboratory in Nijmegen, jointly operated by Radboud University and the FOM foundation.

Declining snowpacks may cut many nations’ water

Gradual melting of winter snow helps feed water to farms, cities and ecosystems across much of the world, but this resource may soon be critically imperiled. In a new study, scientists have identified snow-dependent drainage basins across the northern hemisphere currently serving 2 billion people that run the risk of declining supplies in the coming century. The basins take in large parts of the American West, southern Europe, the Mideast and central Asia

Social media offers neuroscientists a treasure trove of research material

Because social media is used so pervasively in modern society to tap into people’s behaviors and thoughts, neuroscientists are finding Facebook, Twitter, and other platforms to be very useful tools in a broad range of research areas. A review published November 11 in Trends in Cognitive Sciences describes some of the approaches that neuroscientists can use to gain valuable insights from social media and highlights some of the questions that might be answered by social media-based studies

Computer model reveals deadly route of Ebola outbreak

Using a novel statistical model, a research team led by Columbia University’s Mailman School of Public Health mapped the spread of the 2014-2015 Ebola outbreak in Sierra Leone, providing the most detailed picture to date on how and where the disease spread and identifying two critical opportunities to control the epidemic. The result, published in the Journal of the Royal Society Interface , matches with details known about the early phase of the Ebola outbreak, suggesting the real-time value of the method to health authorities as they plan interventions to contain future outbreaks, and not just of Ebola. read more

Discovery of a new confinement state for plasma

The National Institutes of Natural Sciences National Institute for Fusion Science applied the “Momentary Heating Propagation Method” to the DIII-D tokamak device operated for the United States Office of Science, Department of Energy, by the General Atomics and made the important discovery of a new plasma confinement state. This discovery was introduced in the November 4, 2015, issue of Scientific Reports , a journal of the British science journal Nature group, in an article titled “Self-regulated oscillation of transport and topology of magnetic islands in toroidal plasmas.” read more

The long and short of plasma turbulence

For more than 60 years, fusion scientists have tried to use “magnetic bottles” of various shapes and sizes to confine extremely hot plasmas, with the goal of producing practical fusion energy. But turbulence in the plasma has, so far, confounded researchers’ ability to efficiently contain the intense heat within the core of the fusion device, reducing performance. Now, scientists have used one of the world’s largest supercomputers to reveal the complex interplay between two types of turbulence known to occur in fusion plasmas, paving the way for improved fusion reactor design.

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