This article wasn’t very convincing, but let’s play along: if this works it could make sci-fi floating devices a possibility. A drone or other flying object co

This article wasn’t very convincing, but let’s play along: if this works it could make sci-fi floating devices a possibility. A drone or other flying object could float by pulling a vacuum (also not really feasible with today’s pumps) and control it’s density, without the need for any kind of reservoir. Maybe just enough buoyancy to massively reduce the power and noise needed on propellers. Add some form of wireless energy transmission (laser?) to remove the battery weight and voilà. UFOs!