Британские учёные ( :) ) изобрели акустические голограммы www.engadget.com/2015/10/28/british-scientists-create-a-tractor-beam-of-ultrasonic-sound/

British scientists create a 'tractor beam' of ultrasonic sound

A team of researchers from the Universities of Bristol and Sussex have developed the world's first functioning sonic tractor beam able to operate outside of a...