(PhysOrg.com) -- In 2008, scientists built a loudspeaker made of carbon nanotubes that produced sound and music based on the thermoacoustic effect. Now, a different team of scientists has built a loudspeaker made of tiny ...
A research collaboration between Queen Mary University of London, the University of Cambridge and the Institute for High Pressure Physics in Troitsk has discovered the fastest possible speed of sound.
General Physics
Oct 9, 2020
14
9891
Biologist Jeff Podos at the University of Massachusetts Amherst, with Mario Cohn-Haft at the Instituto Nacional de Pesquisas da Amazônia, Brazil, report that they have recorded the loudest bird calls ever documented, made ...
Plants & Animals
Oct 21, 2019
2
582
Research Triangle engineers have developed a simple, energy-efficient way to create three-dimensional acoustic holograms. The technique could revolutionize applications ranging from home stereo systems to medical ultrasound ...
General Physics
Oct 14, 2016
2
1375
Galaxies avoid an early death because they have a "heart and lungs" which effectively regulate their "breathing" and prevent them from growing out of control, a new study suggests.
Astronomy
Jul 11, 2024
3
65
When underwater, humans cannot determine where a sound comes from. Sound travels about five times faster there than on land. That makes directional hearing, or sound localization, nearly impossible because the human brain ...
Plants & Animals
Jun 21, 2024
0
137
When you uncork a bottle of champagne, complex supersonic phenomena occur. Scientists at TU Wien have now been able to calculate exactly what happens for the first time.
General Physics
Dec 21, 2023
0
125
Negative pressure is a rare and challenging-to-detect phenomenon in physics. Using liquid-filled optical fibers and sound waves, researchers at the Max Planck Institute for the Science of Light (MPL) in Erlangen have now ...
Optics & Photonics
Sep 25, 2023
1
62
A collaborative research group has succeeded, for the first time, in measuring the speed of sound of pure iron under pressures similar to the Earth's inner core boundary.
Earth Sciences
Nov 28, 2022
0
26
Opening a bottle of champagne traditionally marks the beginning of a festive celebration. Following the fun pop of the cork, a fizz of bubbles releases into the air, and finally, there is the pleasant tingle on the tongue.
General Physics
Jun 2, 2022
0
222
