The sublime challenge of jet noise
Humans make a lot of noise. The riffs of heavy metal bands like Metallica and Kiss have soared to levels in the 130-decibel range, levels sure to lead to auditory damage.
Humans make a lot of noise. The riffs of heavy metal bands like Metallica and Kiss have soared to levels in the 130-decibel range, levels sure to lead to auditory damage.
Engineering
Sep 19, 2017
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The technological future of everything from cars and jet engines to oil rigs, along with the gadgets, appliances and public utilities comprising the internet of things, will depend on microscopic sensors.
Condensed Matter
Jun 28, 2017
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429
From the printing press to the jet engine, mechanical machines with moving parts have been a mainstay of technology for centuries. As U.S. industry develops smaller mechanical systems, they face bigger challenges—microscopic ...
Nanophysics
Sep 12, 2016
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A research group consisting of National Institute for Materials Science (NIMS) and Tohoku University developed a coating technique using a zinc oxide (ZnO) material, an environment-friendly, low-friction material developed ...
Materials Science
Aug 26, 2016
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If there were no need for massive batteries, electric propulsion could dramatically reduce aviation's contribution to climate change from carbon dioxide emissions. But what if the plane, itself, were the battery?
Energy & Green Tech
Aug 25, 2016
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24
Scientists and engineers striving to create the next machine-age marvel—whether it be a more aerodynamic rocket, a faster race car, or a higher-efficiency jet engine—depend on reliable analysis and feedback to improve ...
Computer Sciences
Aug 23, 2016
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23
Physicists and technicians of the TSU and Institute of Strength Physics and Materials Science SB RAS are developing experimental samples of ceramics resistant to extreme temperatures. The scientists aim to invent a material ...
Materials Science
Aug 22, 2016
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If you've ever experienced the exceptionally powerful and reverberating sounds of a jet during takeoff, you likely won't be surprised that the noise produced by jet engines is ranked among the loudest of human-generated noises.
Soft Matter
Apr 26, 2016
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39
Sediment builds up in reservoir water and can prevent dams from operating properly. EPFL researchers have come up with a method of keeping sediment in suspension and allowing it be flushed out.
Engineering
Apr 20, 2016
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7
Volcanic ash can damage jet engines, and Ludwig-Maximilians-Universitaet (LMU) in Munich volcanologists have developed a new empirical model for assessment of the risk. Their results show that tests using sand do not reflect ...
Earth Sciences
Mar 14, 2016
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