EULER SAFETY FACTOR 39.2× · NEUTRAL BUOYANCY PROOF · ORIGINAL BUILDER TITLE UNCLAIMED
DOCUMENTARY: THE BIRTH OF THE VOIDSTONE
This film chronicles the engineering validation of the 3-Meter Geodesic Vacuum Sphere — the first physical proof that passive vacuum buoyancy is achievable with modern materials. Witness the thermal evacuation protocol, the load cell test, and the moment the structure achieves neutral buoyancy. What was dismissed as impossible becomes INEVITABLE.
Status: THERMAL_EVAC_VALIDATED | BUOYANCY_PROVEN | SF_39.2x_CONFIRMED
Optimized protocol from 1000-year simulation. Achieves 73.1% vacuum (26.9 kPa internal) using only thermal cycling. No mechanical pumps required.
| Phase | Duration | Target | Critical Parameter |
|---|---|---|---|
| 1. Initial Heating | 45 min | 327°C (600K) | Temp uniformity ±8°C max |
| 2. Stabilization | 12 min | 327°C hold | Residual gas <2% initial |
| 3. Seal & Initial Cool | 8 min | CLOSE valve | Seal temp: 327°C ±1°C |
| 4. Primary Cool | 52 min | 40°C (313K) | Cooling: 12°C/min controlled |
| 5. Final Stabilization | 30 min | 22°C ambient | Internal P = 27.3 kPa |
6-layer composite achieving 0.172 kg/m² areal density. Helium selectivity ratio 847:1 (He/N₂).
| Layer | Material | Thickness | Mass |
|---|---|---|---|
| 1. Inner | Polyimide + strain sensors | 12 μm | 0.008 kg/m² |
| 2. Gas Barrier | PVD aluminium oxide | 3 μm | 0.004 kg/m² |
| 3. Selective | Graphene nanopore (2.06Ĺ) | 8 μm | 0.011 kg/m² |
| 4. Load-Bearing | IM7 CF + PEEK (2×2 twill) | 24 μm | 0.089 kg/m² |
| 5. Stiffener | UD carbon/epoxy (0°/90°) | 15 μm | 0.042 kg/m² |
| 6. Outer UV | Polyimide + nano-TiO₂ | 8 μm | 0.018 kg/m² |
| TOTAL AREAL DENSITY | 0.172 kg/m² | ||
Shell-only STL for initial validation. Full nested assembly requires separate inner shell STLs (available via TXID links above). Recommended slicer settings: 0.1mm layer height, 100% infill, continuous fiber reinforcement every 5 layers.