Orbital Rings

Isaac Arthur explains the orbital ring, a megastructure launch-assist system that could move bulk cargo cheaply to orbit and beyond. He compares it with space elevators and discusses power transmission.

HN 推荐的原因： HN commenters offer it as the likely future of cheap access to space, feasible without exotic materials.

“we can build an orbital ring around Earth with today's technology, and it'd be much better than space elevators.” 阅读 HN 讨论 ↗