“…Unseen geographies of our cities lay around us with areas yet to be discovered. Much of it seldom noticed as we pass through them in our everyday lives. The traces of our journeys through each city leave temporary presences. There was once a time where many would have believed these traces were spirits, psychic remains, registrations and impregnations onto objects and environments, from what was possibly a traumatic event in time. Are contemporary technologies a realisation of this belief? These technologies that record our movements in time, are no longer odd, or alluding to being mystical occurrences but the switching of sensors and transmission of radio waves through the ether.

The sensors deployed for Sensity measure temperature, sounds and light as well as the humidity and vibrations, around each recording and transmission unit. Depending on the deployment (there have been several across different cities in Europe) the units are used for different combinations of these discrete elements. But rather than taking finite measurements at a moment in time, mathematically, the notation is delta, registering the change over a period of time. The difference between one state to another that brings our attention to the changes around us, where we may imagine the world around us has not altered very much, but the data gathered from the sensors tells a different story altogether. It draws our attention to the ever-shifting mood of the city. This ebb and flow, viewed over a period of time, might, one imagines, bring about some kind of anthropomorphism in our relationship to the environment. In the same way that an anonymous animal, viewed over a period of time, gradually shows personal characteristics, so does a city. It becomes a barometer of all our psychic imprints on it…” From Sensity by Stanza by Mark R Hancock, Furtherfield.