Surprisingly, some Dyson spheres and ringworlds can be stable
Surprisingly, some Dyson spheres and ringworlds can be stable
phys.org Surprisingly, some Dyson spheres and ringworlds can be stable
In the realm of science fiction, Dyson spheres and ringworlds have been staples for decades. But it is well known that the simplest designs are unstable against gravitational forces and would thus be torn apart. Now a scientist from Scotland, UK has shown that certain configurations of these objects...
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iirc, Niven once said he had to do so many Ringworld sequels because those meddling kids kept noticing problems with the science. In the first sequel he added ramjets to the edges to help with stability.