Additional reference material:
To read more about the Hadley Cell experiment check Hadley Cell Virtual Lab (and accompanying paper: Virtually Enhanced Fluid Laboratories for Teaching Meteorology) .
For further background material read the notes:
Global Energy Balance
General Circulation of the Atmosphere
Thermal wind
The Meridional Structure of the Atmosphere
The General Circulation of the Atmosphere.
Further extra reading:
The Nature and Theory of the General Circulation of the Atmosphere -by E. Lorenz
Understanding the Chaotic Nature of Weather