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New Discovery May Help Engineers Design Quieter Jet Airplanes

2016-04-29 03:47:50| rfglobalnet Home Page

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.

Tags: design discovery jet engineers

Dyson unveils 'quieter' 299 hairdryer

2016-04-27 06:52:23| BBC News | Business | UK Edition

Engineering firm Dyson reveals its first personal care product - a hairdryer that it says is less damaging to hair than a conventional machine.

Tags: unveils dyson quieter

Researchers Look to Design of Owl Wings to Make Quieter Wind Turbines

2015-06-22 19:02:00| Climate Ark Climate Change & Global Warming Newsfeed

Yale Environment 360: A new type of coating for wind turbines inspired by the shape of owl wings may dramatically cut noise associated with onshore wind farms, according to research from the University of Cambridge. The scientists found that an owl's flight feathers have a microscopic down-like covering and numerous other intricate design details that smooth the passage of air over the wing, scattering sound as the owl flies. To replicate the structure, the researchers looked at designing a covering that would scatter...

Tags: make design wind researchers