Apr. 14th, 2009

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Fake feathers could take the drag out of flights - tech - 13 April 2009 - New Scientist

A University of Genoa researcher believes that adding artificial feathers to flight surfaces could reduce drag and, by extension, increase fuel efficiency. He tested the concept using a simulated wind tunnel and found that adding small, stiff bristles reduced the drag of a cylinder by about 15%. Future research would focus on demonstrating this with real systems.
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Our ears may have built-in passwords - tech - 13 April 2009 - New Scientist

UK researchers are examining the potential of using otoacoustic emissions, sounds generated by the cochlea, as a way of verifying a person's identity. The sounds are only detectable by ultra-sensitive microphones and additional work is required to determine if the method can be used to identify individuals with any degree of accuracy.

January 2010

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