Adding noise to enhance a weak signal is a sensing phenomenon common in the animal world but unusual in manmade sensors. Now Penn State researchers have added a small amount of background noise to enhance very weak signals ...
General Physics
Sep 3, 2020
3
800
(PhysOrg.com) -- The often counterintuitive quantum world of superposition, entanglement, and tunneling can greatly enhance applications as diverse as communication, information processing, and precision measurement. At the ...
A team of scientists has successfully measured particles of light being "squeezed", in an experiment that had been written off in physics textbooks as impossible to observe.
Quantum Physics
Aug 31, 2015
1
3065
The detection of Einstein's gravitational waves relies on highly precise laser measurements of small length changes. The kilometer-size detectors of the international network (GEO600, LIGO, Virgo) are so sensitive that they ...
Astronomy
Dec 14, 2018
0
144
Today's world is filled with background noise, whether it be from a roaring river or a well-trafficked highway. Elevated noise levels from both human-made and natural sources may interfere with animals' listening ability ...
Plants & Animals
Sep 27, 2019
0
68
Owls have the uncanny ability to fly silently, relying on specialized plumage to reduce noise so they can hunt in acoustic stealth. Researchers from the University of Cambridge, England, are studying the owl's wing structure ...
General Physics
Nov 19, 2012
0
0
Introducing a noise net around airfields that emits sound levels equivalent to those of a conversation in a busy restaurant could prevent collisions between birds and aircraft, saving passenger lives and billions in damages, ...
Ecology
May 6, 2016
3
64
Innovative sound-mapping software based on human hearing has been developed to help architects design out unwanted noise.
Software
Mar 5, 2010
1
0
Samuel Challeat was riding his bike in the city of Toulouse in the hours before France's strict COVID-19 lockdown took hold when the thought came to him.
Ecology
Jul 3, 2020
0
15
(Phys.org) —A team of Canadian researchers has found that anthropogenic noise (noise created by people that impacts other species) in urban areas leads to less songbird diversity. In their paper published in the journal ...
