real time rome

Considering visualisation of phone calls...http://senseable.mit.edu/realtimerome/
from the clever senseable city lab people
working on WGTNLUX proposal

Human Spirograph

http://www.tonyorrico.com

Arduino EMF detector

original project can be found here -
http://www.aaronalai.com/emf-detector

additional info, and Arduino sketch -
http://blog.makezine.com/archive/2009/05/making_the_arduino_emf_detector.html