RESEARCH BASE

Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.

8 results for "Vitruvius"

U_5_10 Credible Art, Music & Culture

U_5_10 — Architecture as Cultural Expression: Sacred and Civic Space

Architecture — the design and construction of buildings and spatial environments — is simultaneously a practical art (shelter, function, structure) and a profound form of cultural expression, embodying a society's cosmol

architecture sacred space civic architecture temple cathedral mosque

U_4_18 Credible Art, Music & Culture

U_4_18 — Sacred Architectural Proportions

Sacred architectural proportion refers to the use of specific mathematical ratios and geometric relationships in the design of temples, cathedrals, mosques, and other religious structures — ratios believed by their build

sacred architecture golden ratio divine proportion sacred geometry temple design Parthenon

ZH_1_08 Verified Archaeoastronomy

ZH_1_08 — Sundials, Gnomons, and Ancient Timekeeping Devices

The gnomon — a vertical stick, pillar, or edge that casts a shadow — is arguably the oldest scientific instrument in human history, requiring nothing more than a straight object placed in sunlight to measure time, determ

sundial gnomon horologium scaphe hemicyclium shadow clock

ZH_1_14 Credible Archaeoastronomy

ZH_1_14 — Roman Astronomy: Pliny, Manilius, and Imperial Star Observation

Roman civilization, despite its monumental achievements in engineering, law, and governance, made relatively few original contributions to astronomical theory — instead, Rome inherited, compiled, applied, and transmitted

Roman astronomy Pliny the Elder Manilius Astronomica Natural History Julian calendar

J_3_01 Verified Ancient Technology

J_3_01 — Roman Engineering — Roads, Aqueducts, and Concrete Chemistry

Roman engineering represents one of the most thoroughly documented technological achievements of the ancient world, encompassing a road network of 85,000+ km, aqueduct systems delivering over one million cubic meters of

Roman concrete opus caementicium self-healing concrete Via Appia aqueducts Pantheon

J_3_16 Verified Ancient Technology

J_3_16 — Roman Concrete and Hydraulic Engineering: Opus Caementicium, Pozzolanic Chemistry, and Structural Legacy

Roman concrete (opus caementicium) is among the most consequential construction materials in architectural history, enabling structures that have endured for over 2,000 years — including the Pantheon dome (43.3 m span, c

Roman concrete opus caementicium pozzolana hydraulic cement Pantheon dome tobermorite

J_3_08 Verified Ancient Technology

J_3_08 — Ancient Lift Mechanisms — Cranes, Pulleys, and Capstans

The development of lifting mechanisms — cranes, pulleys, winches, capstans, and treadwheel cranes — represents one of humanity's most consequential engineering achievements, enabling the construction of monumental archit

crane pulley compound pulley block and tackle capstan winch

D_5_19 Verified Sites & Artifacts

D_5_19 — Optical Illusions, Entasis, and Perceptual Engineering in Ancient Architecture

Ancient architects across multiple civilizations independently discovered and exploited principles of human visual perception — engineering deliberate optical corrections and illusions into their most important structure

optical illusion entasis Parthenon optical refinements Iktinos Kallikrates

BROWSE BY SECTION — 3,721 documents across 34 fields

A Foundations 112 Docs B Beings & Entities 114 Docs C Global Traditions 116 Docs D Sites & Artifacts 116 Docs E Cataclysms & Chronology 109 Docs F Lost Connections 111 Docs G Modern Frameworks 99 Docs H Suppression & Thesis 95 Docs I UAP Disclosure 87 Docs J Ancient Technology 103 Docs K Consciousness 105 Docs L Genetics & Origins 92 Docs M Forbidden Archaeology 103 Docs N Secret Societies 87 Docs O Earth Anomalies 108 Docs P Philosophy & Meaning 104 Docs Q Cosmology & Physics 100 Docs R Biology & Evolution 95 Docs S Future Technology 100 Docs T Psychology & Social 112 Docs U Art, Music & Culture 122 Docs V Mathematics & Information 87 Docs W World Civilizations 140 Docs X Medicine & Healing 126 Docs Y Altered States 108 Docs Z Molecular Biology 112 Docs ZA Physics & Quantum 117 Docs ZB Ecology & Biology 117 Docs ZC Social Science 111 Docs ZD Information & Computation 96 Docs ZE Ethics & Applied Philosophy 99 Docs ZF Oceanography 105 Docs ZG Linguistics & Communication 110 Docs ZH Archaeoastronomy 114 Docs