Rusin Helix

A Rusin Helix is a megastructure that orbits its host star in a 'corkscrew' rotary motion about its central axis. The helix circles its star in a ring-like fashion, similar to a ringworld but instead of a band its a helix. Strands of the single, double, or triple helix would provide ample surface area for habitation. Since the helix rotates about its central axis, both sides of every strand will have diurnal and nocturnal cycles based on the speed of the megastructure's rotation. So there could be three separate rotating stands and two sides used, therefore a triple helix could provide six different facets that all have diurnal and nocturnal cycles, three facets of which are faced toward the star and three away. Likewise, a double helix would always have two strands, two facets interchangeably pointed at the star while two are pointed away. The centrifugal force exerted by the rotational speed of the helix could provide artificial gravity via centripetal force and thus the size of the helix may not need to depend on its gravitational force. The helix itself could also rotate at a different speed than the surface area on the strand, assuming the surface of the strands is built like a helical plate that shifts along the axis of the helix at a different speed than the "foundational holding piece" of the helical strand which encompasses the helical plate and allows them to "slide along" sed piece. This would provide a significant improvement over a ringworld because a ringworld has one side that is forever fixed towards its host star and one side that is perpetually shrouded in darkness. The ringworld would also require a separate structure to block light from its host star to create night or "nocturnal cycles." And unlike the Alderson disc, the helix would have far less mechanical stress, would be far more sizably practical to build, and would not require a thickness of a few thousand miles, a surface area which is subject only to the sweltering heat of the star or the frigid depths of space. The helix could make use of all its area. The "foundational holding piece" which is itself a helix by which the 'helical plate' would slide could be less organic than the surface of the plate and focus toward being more urban than rural as the plate would be. Imagine a rotating helix in a ring-shape around a star, the surface of the strands, organic and rural. The "foundation" and thickness of the strands would be capable of sliding the rotating helical plate along like a train on its railroad tracks. The "foundational holding piece" would be allotted to a complete urban sprawl.