Supplemental commentary for
ROBOT: mere machine to transcendent mind
Hans Moravec, Oxford University Press, 1998.

Chapter 5: The Age of Robots

Bush Robots (pp. 150-154)
Fractal branching ultra-dexterous robots (Bush robots), January 1999

Orbital Bridges, Tethers or Skyhooks (pp. 156-159)
Cable Cars in The Sky, 1978
Tethers Unlimited (research company)