After previously studying the phenomena of two sound waves in quantum liquids, scientists have now observed sound moving at two different speeds in a quantum gas.
If you were somehow immersed in the three-dimensional gas used for this study, you would hear every sound twice: each individual sound carried by two different sound waves moving at two different speeds.
This is an important development in the field of superfluidity – fluids with no viscosity that can flow without any loss of energy.
I have been intrigued by quantum anything lately. My favorite is quantum entanglement. Thank you for the reaches of study that help explain a lot of what humanity has questioned for so long. It never gets old.