 Moon inhabitants must make all of the following considerations regarding their equipment EXCEPT:
This was to allow the air-conditioning system to function properly, and to prevent air loss in case of the highly improbable meteor damage. For example, because of an order of his stating that there would be no alcoholic beverages within the survey building, the entire survey was assured of a constant supply of home-made, but passably good liquor. Morning to him had no meaning at all, but he thought in the strictest sense that it would be morning on the Moon for another week. The solar furnace was a rough parabola of mirrors used to focus the sun's heat on anything that it was desirable to heat. It was used mostly, from sun-up to sun-down, to supplement the nuclear power plant.
 Protection from extreme temperatures
 Protection from meteor showers and volcanic eruptions  The cost of rare materials imported from Earth  Protection from extreme temperatures  The ability to function with minimal water use