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KG · Space technologyCurated

Building a Dyson sphere as a swarm around the Sun

Summary

KG designs not a solid ball but a growing swarm of independent solar satellites built from dismantled planetary material. Megaprojects become more plausible when modular units replace a rigid overall structure. Automated production can make material and energy more important than human working time.

Ideas

  • A Dyson swarm collects stellar energy with many separate orbiting bodies.
  • Because it is close to the Sun and has a low escape velocity, Mercury offers suitable building material.
  • Self-replicating industry could expand production capacity exponentially rather than linearly.

Recommendations

  • Check hypothetical space projects first for their material, energy and orbital mechanics balances.
  • Distinguish physical feasibility from industrial, political and temporal feasibility.

References

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KG · 2019

Moving the solar system with a stellar engine

KG compares stellar engines that use solar radiation or a directed fusion jet to move the entire solar system over the long term. Very small forces become powerful when they act without interruption over astronomical periods of time. Propulsion can change a frame of reference without driving each object in it individually.

KG · 2022

Why nuclear waste is not shot into space

KG examines the seemingly simple disposal of radioactive waste by rocket and shows why mass, cost and failed launches devalue the concept. Disposal proposals often fail because risk is concentrated during transport. A technically possible solution can be considerably worse than a boring local one.

KG · 2026

Why humanity may never leave the solar system

KG takes stock of the distances, energy, radiation, dust collisions and communication limits that make interstellar travel difficult even for advanced civilisations. The universe can be full of life, even though physical barriers almost prevent direct contact. A reachable home world gains value when escaping to other stars remains unrealistic.