[Quanders]

chrispenycate,

Turning to other authors, like Robinson's 'Red Mars'/'Green Mars' - there is mention of surface domes with peizo cells that convert wind to 'sunlight'. This to me sounds plausible.

I think at some point, radiation will be engineered out by surface structures - applying to at least solar (even for sun storms) and cosmic background radiation. We may see those densely louvered surface buildings yet. Micro space debris could be tougher hazard.

Don't think my stance is due to conditioning by some of the more recent space artists, convincing as some of their portraits have the ability to argue.

Then too, there is the influence of the diurnal cycle. But I think life-like displays could help accomodate travellers with that.

The other point that struck me was having adjustment centrifuges for those facing or leaving transit. With lunar gravity and such, wouldn't it make more sense for the gee conditioning to occur in lunar orbit? (no downward pull, etc, but I'm guessing the Heinleins main advantage is no trip to L orbit required)

Don't mean to nitpick his rock of importance, but these points are important to my realization. Certainly leeway has to be alotted for what was discovered, post publish. Even though, for example, he does brieifly mention hydrogen mining. (not h+, and its surrogate titanium that often accompanies it's presence)