Why no 2001-style rotating orbital station? Probably because it's not easy, it'll be big and heavy, and Big and Heavy and Orbital is definitely not cheap. Mov

Why no 2001-style rotating orbital station? Probably because it's not easy, it'll be big and heavy, and Big and Heavy and Orbital is definitely not cheap. Moving mass — people moving around — within a rotating structure will transmit vibrations throughout the structure, even with mass dampening. As an example of the considerations around vibrations within ISS, astronaut Sunita Williams indicated that the ISS exercise equipment is intentionally isolated from the ISS structure, as the vibrations of the crew members exercising causes problems for the solar arrays. Source: http://www.youtube.com/watch?v=doN4t5NKW-k http://www.youtube.com/watch?v=doN4t5NKW-k