02-02-2014, 12:57 AM
Helium is becoming increasingly rare on this planet, and may be the first element to become scarce, especially if everyone want to use it for power generation and buoyancy; so until we can import it (the second most common element in the universe) we should think about reducing the buoyancy requirement for these turbine strings. Some kind of kytoon arrangement seems possible.
or a solar balloon (not so good at night)
This one has no buoyancy gas at all
or a solar balloon (not so good at night)
This one has no buoyancy gas at all