They have made a thing sounds like a thing of atomic size that allows you to hear the sound of an atom if you had ears that could tune to twenty octaves higher than the top note on a piano.
Yet--this is perhaps even more amazing. Actually I think it really is. It's about your actual physical ear. My friend Douglas Kahn convinced me after sending me a really dope acoustics book.
Your eardrum, when hearing the quietest sound it can hear, vibrates with an amplitude shorter than many many times smaller than the diameter of a hydrogen atom.
Think about it. This is a quantum scale dimensionality.