http://en.wikipedia.org/wiki/StarTram#Generation_2_System suggests an alternative hose elevation technology, originally intended for space-launch.
The idea is to suspend a tube at great height (in this case a launch track for a space vehicle) using magnetic repulsion and tension cables. Metaphorically put, this creates a reverse-gravity field which allows the tube to 'hang up' as opposed to hanging down. This is a very interesting concept, and has apparently been properly costed against balloon-suspension (see linked article for references). If this analysis has in fact been done rigorously, it's potentially game-changing. The SPICE project shows how seriously balloon lift is being taken, and this technology is allegedly superior. I'd be really interested to hear comments. A -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
