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Comment on Ask HN: Dyson Sphere

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I thought you'd build a sphere or swarm at a radius from the sun that got enough solar radiation to be at a comfortable temperature. Then you'd live on the inside surface.

What about gravity? Rotate the sphere?

If you make each sail in the swarm light enough and self-adjusting, radiation from the star could keep them in place... here's a detailed writeup (not mine): https://canmom.art/physics/dyson-spheres

I see, thanks! But they didn’t explore the idea of orbiting sails. The rotational momentum would counteract gravity, and allow for heavier objects.

I don't know enough astrophysics to say anything insightful, but... makes sense to me!

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