Those three were the topics of two big assignments I've had here. It's major because: 1) the engine business analysis worth 50% of the course grade while Coal and Wave Power Generator worth 100%; 2) both required HUGE amount of research and group working. Well, the topics are interesting to some extent. However, being preoccupied for 5 weeks about engine can make you feel very dull.
*now this IS a short post*