Later in the 18th and 19th-century, the connection between bubbles and their fleeting life become more a motive of parody and it is possible to find many sketches of political satire, from this period, representing bubbles as speech of a politician (meaning something nice but with short life) a tradition that lasted until the 20th-century [Pezzoli et al.]. Also, a word and shape of ’bubble’ were used as a graphic convention describing a imaginary form of speech and thought of characters in comic books.
Inspired from those metaphors of bubble, we introduce an interactive art project representing the ephemeral and intangible properties of human's communication. Once speech is shouted out from a speaker, the sound of speech never lasts and it lost its meaning unless there is a listener. Even if the speech is heard by someone, the message will be forgotten as time goes.