I’m poaching this from Danwei. But I feel like if I failed to post about it here I’d be doing our readers a disservice. From Danwei:

Water calligraphy is a poetic activity that you can observe in many Chinese parks: Artists use a large brush to write Chinese characters using water instead of ink. Minutes after the characters are written, they disappear.

Media Artist Nicholas Hanna built a tricycle that writes Chinese characters on the ground as it moves.

His tricycle is part of an exhibition for Beijing Design Week: You can see it at the Northern Electric Relay Factory in Dashilanr, south of Qianmen gate. The exhibition opens 6pm on Saturday September 24, 2011, and runs until October 3.

Read the original post to see a larger photo as well as a video explanation by the creator.