[R]esearchers at Toronto’s York University have created a simple system that’s able to encode data—like a text message—into puffs of evaporated vodka.

The system uses an Arduino-controlled spray bottle to blast specific concentrations of alcohol across a twelve-foot table towards a sensor on the other side.

The researchers were successfully able to send a simple “O CANADA” message across the span, but are confident that much larger distances could be covered.

PLOSOne via Gizmodo.