space habitats Forum: Spacesettlers
Thread: space habitats
# 12565 bywlm_efn@... on Aug. 8, 2012, 2:44 p.m.
Member since 2021-10-03
--- In spacesettlers@yahoogroups.com, "hitssquad" wrote:
> --- In spacesettlers@yahoogroups.com, Joe Strout wrote:
> > On 6/14/12 7:20 PM, joe wrote:
> > > Those Barnal spheres are so 1950's.
> >(Actually 1970s
>
> Or 1920's: "first proposed in 1929 by John Desmond Bernal."
http://up-ship.com/blog/?p=6635