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Presidente SpaceX: costruiremo tunnel su Marte per i coloni umani

© Foto : NASAThe most ubiquitous and accessible material on Mars is the high (6-14%) iron content silica sand which covers the vast majority of the planet’s surface. Once the iron and silica have been separated from the soil matrix, using thermal and magnetic processes, these materials will be moved to hoppers and become the media for induction extrusion /plasma arc sintering heads, positioned by multi-axis CNC hydraulic/servo-driven arms. These robot controlled print-heads will produce first permanent structures on Mars. The monolithic composite shell will be composed of a sintered ferrous latticework on the internal and external surfaces of the structure and a vitrified then devitrified silica core, effectively granite. The lattice and core will provide tensile and comprehensive properties approximating yet surpassing the structural efficiency of ferro-cement or reinforced concrete due to an algorithmiclly regulated deposition of material possible only by through 3d printing. This variable rate of deposition will allow the section modulus of the sintered medium to respond to the specific structural requirements of the form. Also, because of the reductive atmosphere of Mars, the ferrous elements utilized will not undergo the destructive expansion due to oxidation that undermines reinforced concrete structures on earth. The resulting steel and silica forms will serve as bunkers, protecting the Martian inhabitants against solar radiation, small bolide impact, strong prevailing winds, and related sand storms. They will also provide structural reinforcement, insulation, and protection for a nested system of prefabricated graphite/resin inflatable containment units which will provide beta radiation protection, and contain the inhabitable atmosphere.
The most ubiquitous and accessible material on Mars is the high (6-14%) iron content silica sand which covers the vast majority of the planet’s surface. Once the iron and silica have been separated from the soil matrix, using thermal and magnetic processes, these materials will be moved to hoppers and become the media for induction extrusion /plasma arc sintering heads, positioned by multi-axis CNC hydraulic/servo-driven arms. These robot controlled print-heads will produce first permanent structures on Mars. The monolithic composite shell will be composed of a sintered ferrous latticework on the internal and external surfaces of the structure and a vitrified then devitrified silica core, effectively granite. The lattice and core will provide tensile and comprehensive properties approximating yet surpassing the structural efficiency of ferro-cement or reinforced concrete due to an algorithmiclly regulated deposition of material possible only by through 3d printing. This variable rate of deposition will allow the section modulus of the sintered medium to respond to the specific structural requirements of the form. Also, because of the reductive atmosphere of Mars, the ferrous elements utilized will not undergo the destructive expansion due to oxidation that undermines reinforced concrete structures on earth. The resulting steel and silica forms will serve as bunkers, protecting the Martian inhabitants against solar radiation, small bolide impact, strong prevailing winds, and related sand storms. They will also provide structural reinforcement, insulation, and protection for a nested system of prefabricated graphite/resin inflatable containment units which will provide beta radiation protection, and contain the inhabitable atmosphere. - Sputnik Italia
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La presidente di SpaceX, Gwynne Shotwell, in un’intervista alla CNBC, ha affermato che The Boring Company, di Elon Musk, in futuro potrebbe scavare su Marte dei tunnel per ospitare i coloni umani.

"Penso che con l'aiuto di The Boring Company saremo in grado di sistemare le persone su Marte. Avremo bisogno di scavare tunnel per loro", ha detto la Shotwell. 

Uno dei principali problemi per i futuri coloni di Marte è l'alto livello di radiazione proveniente dallo spazio. Per evitare l'esposizione a questa pericolosa radiazione, i coloni del Pianeta Rosso potranno proteggersi vivendo nel sottosuolo.

La SpaceX sta sviluppando il nuovo razzo vettore Big Falcon Rocket (BFR) per raggiungere la Luna e Marte. Già nel 2022 è previsto il primo lancio del BFR con destinazione Marte, e nel 2024 è previsto il primo volo con equipaggio.

La Boring Company è una delle aziende di Elon Musk ed è attualmente impegnata nella costruzione negli Stati Uniti di una rete di trasporto sotterraneo ad alta velocità.    

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