Starship Asterisk*

Even if using maneuvering thrusters to keep one object stationary while the other is moved, the net force on the arm is the same. So that is not the limmiting factor. The limit is in how slow. They are using electric motors which work by lots of little magnetic shoves. Electric motors don't like run...

The figures do seem to be open to question. The frist Canadarm on the shuttle can move 65,000 pounds (29 tonnes) - source wikipedia. The new one you would expect to move more than that but just how much I don't know. The wikipedia page for the Canadarm reports the same facts as this site. I suspect ...