NASA ANNOUNCES FIRST CENTENNIAL CHALLENGES' PRIZES

--- In ssi_list@... "Charles F. Radley"

> Of course, Thor Olson has pointed out (in personal correpsondence)
> that long tethers (whether for elevators or not) have major
> practical problems, e.g. electrical discharges, and might never work
> in the size range of tens of kilometres.

I'd be most appreciative if Thor would share with us his thoughts on
problems that tethers will likely encounter.

TangoMan