Sound-diffracting walls and rubberised asphalt ingredients tackle the major environmental concern of noise pollution from traffic.
Ecology
Oct 21, 2022
0
50
The practice of keeping time hinges on stable oscillations. In a grandfather clock, the length of a second is marked by a single swing of the pendulum. In a digital watch, the vibrations of a quartz crystal mark much smaller ...
Optics & Photonics
Nov 30, 2023
1
38
Managing traffic noise pollution has vexed researchers in large part because of the broad range of frequencies we encounter on the road. Currently, only heavy, wall-like barriers can effectively dampen all of these various ...
General Physics
Oct 17, 2017
0
359
Using Center for Nanoscale Materials (CNM) expertise in the design and fabrication of micro- and nanoscale devices, a new strategy for engineering low-frequency noise oscillators capitalizes on the intrinsic nonlinear phenomena ...
Nanophysics
May 28, 2012
0
0
You might think a customized set of headphones would cost an incredible amount of money, but that is not the case with iFrogz headphones.
Consumer & Gadgets
Jul 8, 2009
0
0
(Phys.org) —A pair of researchers in the Department of Fisheries and Allied Aquacultures at Auburn University in Alabama has found that one type of fish responds to environmental noise by increasing the volume of its own ...
Marco Colo waved a dismissive hand at a near-constant spatter of colorful streaks appearing across a screen monitoring action at the NOvA neutrino experiment.
General Physics
Dec 22, 2015
0
521
Researchers have designed electromechanically reconfigurable ultrathin optical elements that can be controlled and programmed on a pixel-by-pixel level. These versatile metasurfaces could offer a new chip-based way to achieve ...
Optics & Photonics
Sep 9, 2021
0
98
(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 ...
Professor Jukka Pekola and Doctoral Candidate Bayan Karimi from Aalto University propose a new approach to measure the energy of single microwave photons. These low energy quanta are emitted by artificial quantum systems ...
Optics & Photonics
Feb 9, 2022
0
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