A solid can serve as a medium for heat and sound wave interactions just like a fluid does for thermoacoustic engines and refrigerators - resulting in leak-free machines that can stay operating longer.
General Physics
May 10, 2018
0
445
Researchers working at the National Institute of Standards and Technology (NIST) have developed a "piezo-optomechanical circuit" that converts signals among optical, acoustic and radio waves. A system based on this design ...
Optics & Photonics
Mar 28, 2016
0
1874
(Phys.org) —The mammalian auditory system is one of the most sensitive detectors found in nature. Two kinds of cells, the inner and outer hair cells, work together to transduce mechanical vibrations into action potentials. ...
(Phys.org)—Japanese film maker Fujifilm has unveiled a new kind of bendable speaker at this year's Nanotech 2013 tradeshow, currently running in Tokyo. It's based on a thin bendable diaphragm the company calls "Beat."
An MIT researcher has developed a technique that provides a new way of manipulating heat, allowing it to be controlled much as light waves can be manipulated by lenses and mirrors.
General Physics
Jan 11, 2013
32
0
(PhysOrg.com) -- Researchers at the California Institute of Technology have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the same tiny space.
Nanophysics
Oct 26, 2009
9
1
For about half a century, physicists have puzzled over vibrations in glass at low temperatures. The reason: Glass carries sound waves and vibrations differently than other solids—it "vibrates differently." But why? And ...
General Physics
Jul 4, 2023
0
112
One would be hard-pressed to take a walk outside without hearing the sounds of calling animals. During the day, birds chatter back and forth, and as night falls, frogs and insects call to defend territories and to attract ...
Plants & Animals
Sep 14, 2022
0
89
A tabletop covered in miniature Lego minifigures. There is a whooshing sound, a pause, and then a single minifigure in the center of the table topples over, leaving the remaining minifigures standing.
General Physics
Dec 2, 2021
0
281
Researchers at the University of Oxford and Save the Elephants have found evidence that African elephants (Loxodonta africana) listen and react to ground vibrations created by human activity.
Plants & Animals
Jun 30, 2021
0
10
