And once again, Vincent, what exactly are your qualifications in physics and space flight research? Everyone you are talking to here has years on you in that respect.
My research is more on two things:
1.) The history of manned spaceflight and the details of all of these missions.
2.) Orbital Mechanics.
These two things I have spent quite a while with extensive research. For the history of manned spaceflight, I have been studying, researching and reading up on that for about one year and seven months. For orbital mechanics, that has only been in the last 4 months or so, but I have confirmed many of my own calculations and theories through Kerbal Space Program and Orbiter 2010. My Uncle teaches Orbital Mechanics and rendezvous at M.I.T. and I have had many discussions with him about it. I have learned much through him and simply spending time with space flight simulators.
The number of years and months is no issue, however. It is the INTENSITY of the research that matters.