On Sat, January 4, 2014 11:19 am, Fons Adriaensen wrote: > On Fri, Jan 03, 2014 at 05:01:33PM -0600, Charles Z Henry wrote: > >> The peak pressure difference occurs where the volume velocity is zero. >> The location of the peak spatial derivative of pressure coincides with >> the >> location of peak volume velocity. > > I don't think acoustic levitation can be explained as long as > linearity is assumed - because in that case there can't be any > constant term in the forces that he acoustic waves generate. > So what's going on here is probably a lot more complex than > we imagine, and the way it's 'explained' in the video is > completely bogus. >
It seems like this technique could be used to move small objects a fairly large distance as long at the beam forming is applied correctly. I imagine the objects would start to get hot at some point. Does cavitation have a role to play? I wonder what the results would be with other gases or fluids? Is it theoretically possible to lift much larger objects if they were contained in a different gas or fluid rather than standard earth grade air? -- Patrick Shirkey Boost Hardware Ltd _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev