British scientists who have experimented with the so-called "acoustic traction beam" have come a little closer to making humans levitate.
Scientists from the University of Bristol, in particular, directed the same acoustic traction beam at medicinal pills placed in the human body.
“Until recently, it was believed that only very small objects could be moved with the help of acoustic traction beams. Well, simply because trying to move objects that are larger than the wavelength of the acoustic wave resulted in them spinning out of control,”the researchers said.
Engineers from Bristol, according to the publication Physical Review Letters, learned how to cope with uncontrolled rotation - for this they used a special technology based on the rapid change in the direction of the torque of the funnels. The traction beam thus gets the stabilization that scientists need.
Acoustic traction beams, scientists say, can even be used to levitate people. However, up to this point is still far away - say scientists, forcing the pills to levitate.
Kolesnikov Andrey