For the physics you can google yourself.
As articles about the EM drive are showing up on /. since 3 or 4 years, and the physics is published since at least 2000, which was 15 years ago if you are bad in math, it should not be difficult for you to figure how the drive is "supposed" to work.
How exactly do you want to be spoon fed? If you have not even read up the basics, what exactly do you ask me to tell you about it?
When somebody sounds like a total fucking crackpot, they almost always are.
Did not know that NASA is meanwhile down to crackpots. (Regarding the EM drive)
Or that the US Navy is now down to crack pots as well. (Regarding cold fusion)
You must have a strange definition of "crackpot" ... or must live in some basement playing counterstrike all day and night.
(If you want to know how to get banned from a server by doing 10 head shots in a row, obviously without cheating, I tell you ... it is super simple)