A magnificent Safavid-era yakhchal (ice house) near Narin Castle in Meybod — a 300-square-meter domed structure standing 15 meters high, built from sarooj mortar (a waterproof, heat-resistant composite identical in principle to Roman opus caementicium). The yakhchal's north-facing wind catchers channel cold winter air to freeze water in shallow pools, storing the ice through summer in the insulated dome. This passive thermodynamic engineering, requiring zero external energy, produced ice in the desert for millennia. At Giza bearing 269.51° — nearly due west — on the ancient caravan route connecting Mesopotamia to Central Asia.
WikipediaStellar Alignments (12 stars)
| Star ▴ | Rise Az ▴ | Rise Δ ▴ | Set Az ▴ | Set Δ ▴ | Tradition ▴ |
|---|---|---|---|---|---|
| 61.1° | — | 298.9° | — | ||
| 91.4° | — | 268.6° | — | ||
| 109.9° | — | 250.1° | — | ||
| — | — | — | — | ||
| 42.2° | — | 317.8° | — | ||
| 75.9° | — | 284.1° | — | ||
| 70.4° | — | 289.6° | — | ||
| 121.7° | — | 238.3° | — | ||
| 125.7° | — | 234.3° | — | ||
| 67.1° | — | 292.9° | — | ||
| 125.0° | — | 235.0° | — | ||
| 55.2° | — | 304.8° | — |
Related Sites — Ley Line — Earth Grid