https://dabel5.org/Recent content in DABEL5 on DABEL5 — Dyson Swarm EngineeringHugoenSat, 28 Feb 2026 12:00:00 +0900https://dabel5.org/repos/Sat, 28 Feb 2026 12:00:00 +0900https://dabel5.org/repos/https://dabel5.org/why/why-28nm/Wed, 25 Feb 2026 12:00:03 +0900https://dabel5.org/why/why-28nm/Cutting-edge 3nm can’t be made without ASML’s monopoly EUV — impossible in space. 28nm needs only ArF, and Google TPU v1 proved 92 TOPS at that node. Silicon comes from smelting slag, and space itself is the cleanroom.https://dabel5.org/why/molten-metal-thermal-ess/Wed, 25 Feb 2026 12:00:02 +0900https://dabel5.org/why/molten-metal-thermal-ess/A Dyson module is a solar thermal power plant — store heat directly as molten Fe-Ni in zero-g. ~145 Wh/kg with latent heat, infinite cycles, all from asteroid ore.https://dabel5.org/why/why-iron-nickel-battery/Wed, 25 Feb 2026 12:00:01 +0900https://dabel5.org/why/why-iron-nickel-battery/There’s no lithium on asteroids, you can’t swap batteries every 10 years in space, and you can’t put out a fire in vacuum. Iron-nickel batteries are made from asteroid smelting byproducts, last 30-50 years, and after full charge they produce hydrogen and oxygen.https://dabel5.org/languages/Wed, 25 Feb 2026 12:00:00 +0900https://dabel5.org/languages/https://dabel5.org/why/why-not-mars/Wed, 25 Feb 2026 12:00:00 +0900https://dabel5.org/why/why-not-mars/Nobody knows if a child can develop normally in Mars’s 0.38G. An O’Neill cylinder guarantees 1G. Energy, industry, communications, return — L5 beats Mars on every metric.https://dabel5.org/why/climate-control/Tue, 24 Feb 2026 12:00:09 +0900https://dabel5.org/why/climate-control/The same factory that stamps out Dyson swarm mirrors can produce ultra-thin Fe-Ni climate shade panels. Place 2 million km² at SEL1 and you reverse 2°C of warming — fully reversible, no atmospheric side effects.https://dabel5.org/why/heat-flow/Tue, 24 Feb 2026 12:00:08 +0900https://dabel5.org/why/heat-flow/No fluid survives 1,600°C in a closed loop. Each facility gets its own mirror, dumps waste heat at the highest possible temperature, and only sub-100°C leftovers reach the habitat.https://dabel5.org/why/why-turbines/Tue, 24 Feb 2026 12:00:07 +0900https://dabel5.org/why/why-turbines/Solar panels and turbines both convert sunlight to electricity at ~30% efficiency in space. But turbines cascade the remaining 70% as useful heat, can be built from asteroid materials, and are field-serviceable — making them the only option for a self-replicating Dyson swarm.https://dabel5.org/why/power-transmission-local/Tue, 24 Feb 2026 12:00:06 +0900https://dabel5.org/why/power-transmission-local/The standard Dyson swarm collects energy where nothing lives and must beam it to where people are — losing 75-90% in transmission. At L5, you put the factories next to the mirrors and plug them in.https://dabel5.org/why/dyson-swarm-at-l5/Tue, 24 Feb 2026 12:00:05 +0900https://dabel5.org/why/dyson-swarm-at-l5/The standard Dyson swarm scenario assumes dismantling Mercury near the Sun. But what if you use asteroid resources and build at Sun-Earth L5 instead? Here are the calculations.https://dabel5.org/why/mining-transport/Tue, 24 Feb 2026 12:00:04 +0900https://dabel5.org/why/mining-transport/A complete engineering design for mining metallic asteroid 1986 DA with an SMR-powered mining ship, packaging ore in Fe-Ni wire mesh nets, and shipping 200,000 tons per transfer window.https://dabel5.org/why/1986da/Tue, 24 Feb 2026 12:00:03 +0900https://dabel5.org/why/1986da/Where do you source the billions of tons of Fe-Ni needed for a Dyson swarm? A 3 km metallic asteroid, 1986 DA, makes a close approach to Earth in 2038.https://dabel5.org/why/mirror-thermal-runaway/Tue, 24 Feb 2026 12:00:02 +0900https://dabel5.org/why/mirror-thermal-runaway/At Mercury’s orbit (0.39 AU), a 5% reflectivity drop doesn’t just reduce output — it triggers a thermal runaway feedback loop that kills the mirror. At L5 (1 AU), the same degradation is a rounding error.https://dabel5.org/why/eml5-bootstrap/Tue, 24 Feb 2026 12:00:01 +0900https://dabel5.org/why/eml5-bootstrap/The first mirror of a Dyson swarm should be placed at Earth-Moon L5, not Mercury. With 1.3-second communication delay, direct lunar resources, and Earth resupply — EML5 is the optimal bootstrap site.