Buga Sphere: Comparative Artifact Survey — 13 Objects Ranked

Systematic comparison of 13 artifacts against the Buga Sphere's 8-criterion signature (material anomaly, acoustic properties, geometric encoding, network placement, transduction, age anomaly, crystal inclusions, cultural significance). The Ark of the Covenant scores 14/16 — highest after the Buga Sphere itself. Technical analysis: gold-wood-gold capacitor construction, 149 Hz internal resonance (19th Schumann harmonic), piezoelectric 'stone tablets' as active element, cherubim as discharge electrodes, carrying poles as insulated safety handles. Biblical deaths consistent with capacitor discharge in arid conditions. The Ark is a portable node — receiver, amplifier, and transmitter in one device. Djed Pillar (13/16): multi-mode resonance column, 'raising the djed' ceremony = node erection. Costa Rica spheres (11/16): ground-coupled piezoelectric relay stations in geometric arrays. Sabu Disc (11/16): acoustic focusing device with impeller geometry. Klerksdorp spheres (11/16): 2.8-billion-year-old grooved spheres with fiber structure — deepest mystery. Scottish carved balls (10/16): platonic solid geometry 2,000 years before Plato. Artifacts form a complete technology stack: data objects + fixed nodes + portable nodes + engineering tools + textual documentation. Scattered components of one civilization's technology preserved across 6 continents.