The speed of sound in air is typically between 330 and 350 meters per second (m/s). This velocity can vary depending on several factors, including temperature
The two-fluid model of superfluids predicts a second, quantum mechanical form of sound. Ultracold atom experiments have now measured second sound in the unusual two-dimensional superfluid described by the Berezinskii–Kosterlitz–Thouless transition.
We present measurements of the absolute phase velocity of transverse and longitudinal sound in superfluid 3He-B at low temperature, extending from the imag
the way I got into this was, many, many years ago, I picked up this book on C++ and it was describing graphics and stuff. And I didn’t understand half of it, and there was a color plate in there. It took me two days to realize that those are not photographs...
View PDFHighlights Summary Advance prediction of boiling crisis is critical to the safety and economy of many thermal systems. Here, we perform steady-state near-saturated boiling experiments on a plain copper surface and acquire the acoustic emissions (AEs) in natural convection, nucleate, and ...
www.nature.com/scientificreports OPEN Protons at the speed of sound: Predicting specific biological signaling from physics received: 03 March 2015 accepted: 22 February 2016 Published: 24 May 2016 Bernhard Fichtl1,2, Shamit Shrivastava3,4 & Matthias F. Schneider3 Local changes in pH ...
Fifty years of measuring, modeling, and sometimes understanding the physics of sound in the sea By the end of the 1940s naval experience in World War II and progress in undersea physics and oceanogoraphy had brought about recognition of low frequency ... HM Walkinshaw - 《Journal of the ...
The effect of He3 nuclear magnetization relaxation on the second viscosity in quantum solutions subjected to an external oscillating magnetic field was studied. The cases of first-, second-, and forth-sound waves are examined. The expressions for the second viscosity coefficients are derived and the...
《Understanding Physics, 3 Volumes in One:Motion, Sound & Heat; Light, Magnetism & Electricity; The Electron, Proton & Neutron》作者:Dorset Press,出版社:1988年6月,ISBN:。
Here we overcome these limitations by modulating in time the acoustic properties of a lattice of resonators, introducing the concept of acoustic Floquet topological insulators. We show that acoustic waves provide a fertile ground to apply the anomalous physics of Floquet topological insulators, and ...