
“SPACE COLONY----Shown here is the 10,000-inhabitant space colony proposed by the NASA-Ames/Stanford 10-week summer study held at Ames. The approximately 20 professors from major U. S. universities, who did the study, say such a colony might be built with existing technology in 20 years, and might well pay for itself, perhaps with substantial profits. The wheel-like colony would be over a mile in diameter, with an interior diameter of about 200 yards. It would have an Earth-like interior environment and landscape (sunlight, flowers, trees) with interior views of up to a half a mile. The massive exterior of Moon rocks would shield inhabitants from cosmic radiation. Gravity would be provided by centrifugal force from the colony’s 1 rpm rotation. The colony would produce various products from lunar materials under economically advantageous space conditions--such as solar power stations to supply Earth, sister colonies, spacecraft, and electronic components for export to Earth. Unlimited power would be available from the Sun. Metals, glass and other materials would come from the Moon at a fraction of Earth cost. The mirror floating above the colony reflects sunlight into the ring mirrors below, which reflect it through 100-foot strip windows into the colony’s interior for light and agriculture. Above the core sphere are communications spacecraft docking facilities.”
And/or:
"The wheel-like design shown above...might be used for the first space colony. The mirror floating above the colony reflects sunlight into the ring mirrors below, which reflect it through 100-foot strip windows into the colony's interior for light and agriculture. Above the core sphere are communications and spacecraft docking facilities. Long rectangle in foreground is a heat radiator. The facility below the colony is the manufacturing area where lunar ore is melted with solar power. Lower central sphere is the original "construction shack" for the colony.""
Found at:
space.nss.org/settlement/MikeCombs/SCTHF.html
Credit: National Space Society website