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Researchers at Purdue University, working with the U.S. Air Force, have developed tiny wireless sensors resilient enough to survive the harsh conditions inside jet engines to detect when critical bearings are close to failing and prevent breakdowns.The devices are an example of an emerging technology known as “micro electromechanical systems,” or MEMS, which are machines […]

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Using smoke, laser light, model airplane propellers and a campus wind tunnel, a team led by Johns Hopkins University researchers is trying to solve the airflow mysteries that surround wind turbines, an increasingly popular source of “green” energy. The National Science Foundation recently awarded the team a three-year, $321,000 grant to support the project.The rise […]

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The ISIS Second Target Station Project at the STFC Rutherford Appleton Laboratory in Oxfordshire achieved a major milestone on Friday 14 December, at the first attempt and two days ahead of schedule. Protons were successfully extracted into the new proton transfer beamline from the existing ISIS accelerator and delivered to the new target station.The high […]

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A team of researchers from North Carolina State University, the University of Michigan and Oak Ridge National Laboratory have constructed a low-energy positron beam at NC State’s PULSTAR nuclear reactor with the highest positron rate of any such facility worldwide. Positrons, the antiparticle of electrons, are generated using the intense radiation in the vicinity of […]

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Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a mechanical fatigue process that eventually leads to cracks and breakdown in bulk silicon crystals — a phenomenon that’s particularly interesting because it long has been thought not to exist. Their recently published* results have important implications for the design of new silicon-based […]

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