If we are to see the promised benefits of high-temperature superconductors, such as low-loss motors and generators or maglev trains, we will need superconductors that can carry very large currents. Decades-old experiments have shown that the current density a superconductor can carry may be increased...
Trapping vortices key to high-current superconductors
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Nanospiked bacteria are the brightest hard X-ray emitters
In a step that overturns traditional assumptions and practice, researchers at the Tata Institute of Fundamental Research, Mumbai and Institute for Plasma Research, Gandhi Nagar have fashioned bacteria to emit intense, hard x-ray radiation ("Enhanced x-ray emission from nano-particle doped bacteria"). This image shows a 10,000 fold enhanced X-ray emission...
Chemists design a quantum-dot spectrometer small enough for a smartphone
Instruments that measure the properties of light, known as spectrometers, are widely used in physical, chemical, and biological research. These devices are usually too large to be portable, but MIT scientists have now shown they can create spectrometers small enough to fit inside a smartphone camera, using tiny semiconductor nanoparticles called quantum...
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