Hello, I've always been interested in space and space flights and have often wondered how rockets are lunched into space, how their trajectories are defined, how they are sped up (like gravity assist), how they are slowed down (like the complicated trajectory of the Rosetta mission etc . . . I have a BENG in electrical engineering but I'm not interested in expending too much time delving deeply into the mathematics. I took a first year dynamics course in college so I'm familiar with Newton's equations up to that level. I remember we derived Kepler's laws from Newton's laws by solving a 2nd order differential equation which showed that indeed the orbits of planets should be elliptical. But in introductory dynamics, everything is simplistic and I'd like to gain some understanding on rocket science or aerodynamics, orbit maneuvers without the necessary intricate mathematical details because I won't be using them anyway. So, in short, I'd like a rocket science/aerodynamics book that I can read in a week or two. If such a book exists, I'll be happy if you can refer me to it. Thanks.