Analog controlled light sensing spider robot. It works without any logic device. This video shows different behaviors which can be choosen by inserting different resistors and capacitors. See also at: http://www.youtube.com/watch?v=_tsIAp78ggk&feature=youtu.be
Valentino Braitenberg described a series of thought experiments in which vehicles with simple internal structure behave in unexpectedly complex ways. These vehicles are bug-like entities which have direct connections between sensors and motors. Their behaviour is modulated by changing the pattern and strengths of these connections.
Duration : 0:3:6