Binairy Talk: Can Smoke Signals Transmit Digital Data?

Professors at the Köln International School of Design in Germany wanted to see if they could transmit digital data using smoke signals - because.  The result was this installation which they dubbed Binairy Talk. Air serves as the communication medium for binary code, as a carrier of data and information across a distance.  And the message they chose to transmit? In a cheeky nod to the history of programming it was Hello World!