What is engineering, what is megaphuraura?

Megastructure is an artificial construct of huge size. The term is informal, but generally megastructures are at least several thousand kilometers along one dimension. Megastructures most often appear in sci -Fi, although the Great Wall of China is megtructura. The big wall is seen from the low orbit of the Earth, but also highways, fields of crops and large buildings. The low orbit is only 200 km (125 million), so it makes sense. Megastructures are most often observed in sci -fi and it seems that it is only a matter of time until our civilization starts to build. Megastructura should be a neighboring, independently supported entity - that is, it is not composed of the aggregate of smaller constructs.

The most famous fictitious megastructure would be the star of death. It was proposed that the death star was similar in size to the moon. If so, it would be about 3,500 km (2,000 million) size. Its core would be below a huge amount of insights and would probably have to be firm than containing structural elements,Like in movies.

Globus Cassus, an abstract design project, proposed to "develop" the country's matter into a series of rotating rings, which we would then inhabit the inner surface. A similar concept appears in the novels of Ian M. Banks , where huge megtructures in the shape of a circle of dozens of ground diameters in the size called "orbital" quietly rotate, their inner surfaces covered with hundreds of continents and lengthy oceans. In the Ringworld Larry Niven series, there is an even larger ring - this ring goes around the sun with the surface of the ground. It is made of fictitious material called SCRIRITH with atomic bonds as strong as the bonds between protons and neutrons in the atomic core. Scientists perform calculations about the necessary strength of this megastructurathyard would have to be about the strong.

Return closer to reality, cosmic lift, megtructura that could be built of a material that we can already produce,Although in small quantities - in small quantities - carbon nanotubes - it would have about 50,000 km, reaching up to geosynchronous orbit. Such an elevator could be relatively thin, with a nanotube core between 1 and 10 cm in width. Higher parts of the elevator would have to be stronger to withstand the impact with the spatial fragment. Until 2031, there is already a group, LIFTPORT, which plans to build a cosmic elevator.