No one had ever come so close to the ideal laser before: theoretically, laser light has only one single color (also frequency or wavelength). In reality, however, there is always a certain linewidth. With a linewidth of only ...
Optics & Photonics
Jun 29, 2017
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(PhysOrg.com) -- Noisy neighbors can be desirable – at least if you’re a young reef fish trying to choose a home. New research from the Universities of Auckland and Bristol found that juvenile fish listen to ...
Ecology
Jan 10, 2011
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(Phys.org)—Animals have developed a variety of strategies for dealing with increasing noise pollution in their habitats. It is known, for example, that many urban birds sing at a high pitch to differentiate their song from ...
Plants & Animals
Jan 11, 2013
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Researchers from CSC—IT center for science, Aalto University and Åbo Akademi and their collaborators from Boston University in the U.S. have for the first time demonstrated how the noise impacts on quantum computing in ...
Quantum Physics
Mar 9, 2020
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Advanced military jet aircraft have engines that provide the needed speed and maneuverability. However, with this greater power there is significant noise during takeoff and landing. The noise can impact the public and affect ...
Engineering
Feb 15, 2011
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Smartphone owners can surf the Web, pay bills, watch videos, enjoy music and send email. But while their gadgets have been designed to handle increasing amounts of data, experts say, less attention has been paid to their ...
Telecom
Mar 2, 2012
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Sensors that sniff out chemicals in the air to warn us about everything from fires to carbon monoxide to drunk drivers to explosive devices hidden in luggage have improved so much that they can even detect diseases on a person's ...
Nanophysics
Feb 1, 2018
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Noise pollution is a big public concern associated with operating wind turbines. A group of European scientists claims to have found a solution to this problem, assembling an innovative device on the blades. They are collaborating ...
Energy & Green Tech
Sep 25, 2015
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Human activities, like spreading cities, transport and construction, generate a lot of noise that travels faster in water than in air.
Plants & Animals
Sep 27, 2017
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A breakthrough study by a specialist European research team, including scientists at the University of St Andrews, shows man-made underwater noise pollution is picked up by whales in a similar way they sense natural predators, ...
Plants & Animals
Mar 23, 2022
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