
If you were anything like me and wondered why you cared at what point a train leaving Chicago would intercept a train leaving New York at. The Physics of Superheroes puts you in the rite frame of mind, the crime fighting frame of mind, and makes you think about the possibility and realities of a lot of comic book characters powers and even thought they might not exist, it could be in the realm of possibility.
Written by a physics professor and long-time comic-book fan James Kakalios, he Talks about the Physics behind memorable moments in comic book history. One example most people know about is the death of Gwen Stacy and the forces acting upon in her final moments.
Recommended as a good read.
Link: http://en.wikipedia.org/wiki/The_Physics_of_Superheroes