I wonder if it's cheaper to do it with everything moving. a weight with a long cable spinning like Thor's hammer at a given altitude. A payload catches the cabl

I wonder if it's cheaper to do it with everything moving. a weight with a long cable spinning like Thor's hammer at a given altitude. A payload catches the cable, steals some angular momentum to get kicked up to the next altitude, with the next hammer. If it's close enough to earth, i think the cable will get some induced current, which could spin a gyroscope in the hammerhead, getting some angular momentum back. Actually, i just wonder if this approach has a name, seems like every harebrained idea i've ever had was thought of fifty times before by much smarter people. edit Skyhook! cool.