Haha I love this bit: "Importantly, the researchers did not actually measure mass being carried by a sound wave—they used math to prove it happens"

Ah but this turned out pretty good -



Regards, Dana, the person with the evaporating speakers. I swear it by all thats holy.

 

So wherever the medium is compressed by the sound waves local gravity is affected. OK. Makes sense. But I still don't see how they can be considered to be a particle. But then some things just skid over my head.