I am obliged by their enthusiasm and eagerness to provide assistance whenever possible to thank the professors of this course, Drs Andrzej Kotlicki and Chris Waltham. Their help was invaluable and appreciated. I must also thank Dr. Mark Halpern for his key suggestions regarding the rail design. I'd also like to thank my peers in the Phys 420 course for their suggestions at our weekly meetings. I'm glad this thing actually worked out!
Big Bertha photo taken from http://www.worldwar1.com/pharc005.htm