A psychogeographical expedition to Deptford, using sensor technology.

I wanted to see if the strong emotions I sometimes feel during a derive have any basis in the physcial environment.

To do this I built a sensor kit around a Raspberry Pi computer and used this to record various measurable characteristics, such as magnetic field strength and air pressure, together with the location of each reading, as measured by a GPS sensor.

I chose Deptford to test this kit, since it is where the Elizabethan dramatist and spy Christopher Marlowe was probably murdered, under very strange circumstances, while drinking at a house on Deptford Strand.

Marlowe was well known for his controversial plays, such as Dr Faustus, in which the central character conjures up the Devil on stage. This was a sensation: at the time people believed that the Devil might actually come if you called him correctly.

I walked around what is left of the Strand and found some interesting anomalies.

I've yet to form a theory from my observations: this needs more work.