3D Modelling using Polygons and Animation [3D_house] [3D_polygon_house] [dual_3D_house] [notes]
To run the TCL scripts under Windows OS you will need a TCL Interpreter. A similar program in C/C++ is also 
available (see notes).

Hydrogen & Fuel Cell Technology [notes]
Hydrogen may provide a means of generating clean sustainable energy in the future. Discover how.