Scientists find upper limit for the speed of sound

Re:Scientists find upper limit for the speed of sound by rbanffy on Sunday October 11, 2020 @07:21AM (#24745029)

It's fascinating that the upper bound of the speed of sound is analogous to the speed of light in a vacuum, but it's highest when propagating through the thing that's the complete opposite of a vacuum.

Now I wonder what the speed of sound in, say, neutron-degenerate matter, would be.

[ Parent | on HN ]

Re:Scientists find upper limit for the speed of sound by Maursault on Monday October 12, 2020 @04:18PM (#24758999)

> the thing that's the complete opposite of vacuum

Solid matter is very nearly entirely empty space, and the vacuum state is not truly empty but instead contains fleeting electromagnetic waves and particles that pop into and out of existence.

[ Parent | on HN ]

Re:Scientists find upper limit for the speed of sound by willis936 on Sunday October 11, 2020 @08:28AM (#24745329)

I’m not sure, but I bet it is highly dependent on your frame of reference. :)

[ Parent | on HN ]