# Aviologium (aviologium.com) > The Interconnected Knowledge Graph, 4D Airspace Atlas, and Atmospheric Travel Engine. Aviologium is a canonical knowledge graph and interactive simulator that unifies first-principles aerodynamics, aircraft systems architectures, FAA Airman Certification Standards (ACS), and high-altitude passenger travel physics. ## Core Endpoints & Sections - / : Main nexus, 4D altitude & atmospheric physics slicer, and interactive causal knowledge graph explorer. - /atlas : 4D geospatial corridors, vertical terrain cross-sections (KDEN -> KASE), and oceanic waypoint deconstructions (JFK -> LHR). - /systems : Aircraft systems diagrams (3,000 psi hydraulics, triple-redundant electrical buses, pitot-static air data computers, and bleed-air environmental control). - /cabin : Passenger travel intelligence, acoustic sound decoder (PTU barking, flap actuators, gear thumps), turbulence fluid physics, and window seat solar oracle. - /lexicon : Searchable FAA ACS codes and aeronautical terminology. ## Design System Tokens & Machine Context - /tokens.json : W3C DTCG-compliant aviation design tokens (OKLCH avionics amber, EFIS cyan, phosphor green). - /llms-full.txt : Full standalone semantic corpus for LLMs and autonomous agents.