LONG RANGE DEVELOPMENTS                                                               

Use and Operation


Whole cities are most efficiently enclosed under one large dome. Within city enclosing domes, the temperature would remain tropically constant or could be modified as required. If growing vegetation (i.e. trees, vegetables, corn, sugar, ground cover, etc.) the photosynthetic conversion of sun radiation into hydrocarbon molecules will (1) chemically & simultaneously convert monoxide gases given off by human occupants into human supporting (air) atmosphere thus eliminating all necessities for windows or air conditioning apparatus & (2) harvest hydrocarbon molecule trapped energy as food or as fuel-alcohol energy. Typically the vegetation most efficiently employed includes the growth of corn & the winged bean in sunlit areas & mushrooms in the hot dark areas.

SIZE & CONSTRUCTION


Based on metallurgical coherences we can go into the same magnitudes of clear spanning dimensions as our largest suspension bridges. Based on current metallurgical evolution, we may consider clear span geodesic tensegrity spheres in the magnitude of 2 miles in diameter realizable (as of 1970 ?). As the worlds high performance metallurgic technologies are freed from concentration on armament, their structural, mechanical & chemical performance (together with the electrodynamic remote control systems in general) will permit dimensional exquisiteness of mass production forming tolerances to be reduced to an accuracy of one-hundredth-thousands of an inch. Such fine tolerances will permit the use of hydraulically pressure-filled glands of high tensile metalic tubing using liquids that are non-freezable @ space program temperature ranges, to act when pressurized as the discontinuously isolated compressional struts of large geodesic tensegrity spheres. Since the fitting tolerances will be less than the size of liquid molecules there will be no leakage. This will obviate the collapsibility of the air lock & pressure maintained pneumatic domes that require continuous, pump pressuring to avoid being drag-rotated to flatten like a candle flame in a hurricane. Hydro-compressed tensegrities are less vulnerable as liquids are non-compressible. In the advanced-space-structures research program it has been discovered that - in the absence of unidirectional gravity and atmosphere - it is highly feasible to centrifugally spin-open spherical or cylindrical structures in such a manner that if one-half the spherical net is prepacked by folding below the equator and being tucked back into the other and the outer half to form a dome within a dome when spun open, it is possible to produce domes that are miles in diameter. When such structures consist at the outset of only gossamer, high-tensile,low-weight, spider-web-diameter Filaments, and when the spheres spun open can hold their shape unchallenged by gravity, then all the filaments local molecules could be chemically activated to produce local monomer tubes interconnecting the network joints, which could be hydraulically expanded to form an omni-intertrussed double dome. Such a dome could then be retro-rocketed to subside deceleratingly into the Earth's atmosphere within which it will lower only slowly, due to its extremely low comprehensive specific gravity and its vast webbing surface, permitting it to be aimingly-landed slowly, very much like an air-floatable dandelion seed ball: the multi-mile-diametered tensegrity dome would seem to be a giant cousin. Such a space-spun, Earth landed structure could then be further fortified locally by insertion of larger hydrostrutings from helicopters or rigid lighter-than-air-ships - or even by remote-control electroplating, employing the atmosphere as an electrolyte. It would be feasible to expand large dome networks progressively from the assembly of smaller pneumatic and surface-skinning components. In air-floatable dome systems, metals will be used exclusively in tension, and all compression will be furnished by tensionally contained, anti-freeze treated liquids. Metals with tensile strengths of a million p.s.i. will be balance opposed structurally by liquids that will remain incompressible even at a million p.s.i. Complete shock-load absorption will be provided by highly compressible gas molecules - interpermiating the hydraulic molecules - to provide symmetrical distribution of all forces. The hydraulic compressive forces will be evenly distributed outwardly to the tension skins of the individual struts and thence even further to the compressive metal- or glass-skinned hydro-glands of the spheroidally enclosed, concentrically-trussed together, dome-within- dome foldback, omnitriangulated, nonredundant, tensegrity network structural system. It will be possible to produce geodesic domes of enormous diameters to cover whole communities with a relatively minor investment of structural materials. With the combined capabilities of mass production and aerospace technology it becomes feasible to turn out whole rolls of noncorrosive flexible-cable networks with high tensile, interswagefittings to be manufactured in 1 gossamer piece like a great fish net whose whole unitary tension system can be air delivered anywhere, to be compression-strutted by swift local insertions of remotely controlled, expandable hydro-struts, which, as the spheric structure takes shape, maybe hydro-pumped to firm completion by radio control.

ENERGY PRODUCTION


It has been satisfactorily demonstrated that the reflective concave inner surface of a geodesic dome-within-a-dome environment controlling shell will act as a parabolic sun radiation concentrator, focusing the suns radiation income into heating of a circularly arced, liquid containing pipe, whereby the suns heat may be stored liquidly in vacuum enclosed subterranean tanks for subsequent use in a variety of ways. By-product heat from the air compressing is used to heat the water in the same reservoir. It is clearly demonstrable that the conversion of wind power by dome-in-a-dome, drag operated air turbines will power the air compressing & tank storage of air & will thus produce ample power to operate a pneumatic tool system for all mechanical operating needs within the dome. Pneumatic tools avoid the human-electrocution perils of electrically operated domestic technology. If the wind drag of buildings is employed to turbine convert wind power into tank stored compressed air, the latter may be stored within the space between the inner & outer dome skins as low pressure atmosphere in quantities adequate to pneumatically & evenly distribute any concentrated outer cover loadings throughout all the tensional components of the geodesic tensegrity structure.

DESIGN SCIENCE RESPONSIBILITY


The full design science responsibility includes: developing, prototyping, testing, production, engineering, tooling, manufacturing, transport from the factory to the use point, assembly, removal & recycling of materials. Only from consideration of each successive cycle can we learn how to do it again more efficiently & satisfactorily to society. Competent designing of geodesic tensegrity domes requires monitoring the evolving increases in performance of the various chemical materials & metal alloys available. Next Table of Contents