Antarctic fur seal pups identify the mother's vocal pitch at longer distance and use other components of the vocal signature at closer range to identify their mother in densely populated breeding colonies, according to a ...
Plants & Animals
Sep 2, 2015
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In the 1940s, researchers learned how to precisely control the frequency of microwaves, which enabled radio transmission to transition from relatively low-fidelity amplitude modulation (AM) to high-fidelity frequency modulation ...
Optics & Photonics
Apr 23, 2014
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Imagine a cell phone that's half the size with longer battery time and better performance. That could become a reality thanks to new research by Nian Sun, associate professor of electrical and computer engineering at Northeastern. ...
Electronics & Semiconductors
Jan 15, 2014
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An "artificial cricket hair" used as a sensitive flow sensor has difficulty detecting weak, low-frequency signals – they tend to be drowned out by noise. But now, a bit of clever tinkering with the flexibility of the tiny ...
Nanophysics
Jun 6, 2013
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As fiber optic technology continues to advance, it faces challenges from both its physical properties and its use of infrastructure. One emerging high-speed solution being developed at Stevens Institute of Technology uses ...
Optics & Photonics
Mar 28, 2011
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