Water calligraphy device by Nicholas Hanna

Chinese men painting characters on the ground of parks with long brushes and water. Nicholas’ version is mounted on a flat-bead tricycle which is a ubiquitous form of transportation in Beijing. Passages of Chinese characters are input to a computer which transmits them to an electrical system that actuates an array of solenoid valves. The valves release droplets of water on the ground as the tricycle moves forward, thus forming Chinese characters that slowly pool together and eventually evaporate entirely.