We all know the pictures of the astronauts on the ISS floating around. We also suspect that a lack of gravity is bad for the body as the muscles go weak and such.
Why don’t spaceships just rotate to cause the effect of artificial gravity through centrifugal forces?
That was worth every second it took to read.
For number 3 and the slip ring. I have always thought, just make the stuff on the end self sufficient. Essentially make two spacecraft. One to run all the experiments in zero ish g. And the other to be like living quarters. You can even make them suit up to commute. But you would need one heck of a long arm to make the 2 palatable. Maybe 3 craft, two way the hell out there attached to some crazy long tethers. One in the middle. Then some kind of speed sled thing to get a person from the outside in or something. Probably need to worry about balancing out the change of weight due to the sled (and person) moving from outside in and such.