Energy is being transmitted as a wave. Like the dispersion from a drop of water into a pool the energy will decay exponentially as the radius increases. This is

Energy is being transmitted as a wave. Like the dispersion from a drop of water into a pool the energy will decay exponentially as the radius increases. This is all basic and I unitive physics. Notice that she needed to position this about a foot away from the transmitter and I'm sure there was a lot of battery power in that large box. At best this is a nifty science experiment but I can't see how this could work at the scale they're proposing.