Boerdijk–Coxeter helix bent into a ring. Regular tetra never close (Świerczkowski) — closing 30 forces strain. Edge colour = deviation from regular (the δ). Drag to rotate · wheel to zoom.
Readouts
tetrahedra30
ring radius R—
max edge strain—
edges bent >5%—
seam gap (tet30→tet1)—
degrees (720° = home)0°
laps0.00
burn statusidle
edge strain:
compressed
regular
stretched
The seam never fully closes and the edges must give up ~⅓ of their regularity — that residual is the non-completion δ at 30 units. N=60 halves it; N=120 → ~9%.