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| [[http://www.sacramentol5.com/Spaceport.htm|Spaceport]] - a large "built in orbit" mass driver. '''Sorry, dead link. Can anyone find a newer site?''' | [[http://www.sacramentol5.com/Spaceport.htm|Spaceport]] [[http://essayshelp.org/|essay help]] - a large "built in orbit" mass driver. '''Sorry, dead link. Can anyone find a newer site?''' | 
Other Dynamic Structures
DomesticStructures - why you don't want to build a bridge or a building with launch loop technology.
OrbitalRings - why these are difficult.
Spaceport essay help - a large "built in orbit" mass driver. Sorry, dead link. Can anyone find a newer site?
