Still not sure where all of this is going but here are some more bits and bobs 

that I quite like....

http://www.interactiondesignblog.com/2008/08/liquid-display/

An interactive display which is controlled by manipulating three cups of water. By entering your finger and moving around in the cup you control the size and frequency of the bubbles on the display.

http://www.studioroosegaarde.nl/project/lotus/

LOTUS 7.0 is a living wall composed of smart foils that fold open in response to human behavior. Walking by LOTUS, hundreds of aluminum foils unfold themselves in an organic way; generating transparent voids between private and public.

Connection from United Visual Artists on Vimeo.

The work consists of an array of vertical luminaires integrated into a pedestrian bridge. These create oscillations of colour and geometry based on human movement, transforming the rigid structure of the bridge into a fluid entity that transmits the rhythm of the crowd to its surroundings.

http://www.ltmuseum.co.uk/whats-on/exhibitions/171-exhibition-sense-and-the-city


heres something to go see at the london transport museum...at last that family ticket will come in handy.