To add on that, for all cases really means a lot more than bends in pipe or air off a wing or smoke which we have difficulty with today. You'll need to hit everything, plasma on the Sun, exotic matter, it leads to quasiparticles for the many-body problem.
My interest in this subject is I hope new developments lead to cardiac therapies. I send some buzzing acoustic signal with a pacemaker, I can treat blockages in the brain or tumors in hard to reach organs. A lot better to me than building faster missiles to blow more people up.
My interest in this subject is I hope new developments lead to cardiac therapies. I send some buzzing acoustic signal with a pacemaker, I can treat blockages in the brain or tumors in hard to reach organs. A lot better to me than building faster missiles to blow more people up.