Many species of owl are able to hunt without being heard by their prey by suppressing the noise of their wings at sound frequencies above 1.6 kilohertz (kHz)—including the range at which human hearing is most sensitive.
Mathematics
Sep 27, 2017
0
136
Scientists at The Australian National University (ANU) have found a way to better detect all collisions of stellar-mass black holes in the universe.
Optics & Photonics
Oct 31, 2019
1
501
Ultra-precise lasers can be used for optical atomic clocks, quantum computers, power cable monitoring, and much more. But all lasers make noise, which researchers from DTU Fotonik want to minimize using machine learning.
Optics & Photonics
Jan 3, 2022
0
182
Researchers at Chalmers University of Technology, Sweden, have demonstrated an integrated amplifier with the lowest noise performance so far. The amplifier offers new possibilities for detecting the faintest electromagnetic ...
Electronics & Semiconductors
Mar 23, 2013
5
0
(PhysOrg.com) -- University of Adelaide acoustics researchers are investigating the causes of wind turbine noise with the aim of making them quieter and solving 'wind turbine syndrome'.
Engineering
Jun 1, 2011
8
0
Noise from motorboats is making fish become bad parents, and reducing the chance of their young surviving, research led by marine experts at the University of Exeter has shown.
Ecology
Jun 6, 2017
0
331
Seismic noise—the low-level vibrations caused by everything from subway trains to waves crashing on the beach—is most often something seismologists work to avoid. They factor it out of models and create algorithms aimed ...
Earth Sciences
Aug 22, 2018
0
388
City centers could become virtually car-free over the next 20 years under new plans proposed by University of Leeds transport researchers.
Energy & Green Tech
Oct 20, 2011
37
0
Scientists have used the sound of the sea to discover the route taken by hot fluids that feed a supervolcano in southern Italy.
Earth Sciences
Apr 25, 2019
1
175
An investigation into how owls fly and hunt in silence has enabled researchers to develop a prototype coating for wind turbine blades that could significantly reduce the amount of noise they make.
Engineering
Jun 22, 2015
1
1313
