RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
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.
2,043 results for "greenhouse to icehouse" — page 1 of 103
E_2_15 — Azolla Event and Eocene Arctic Cooling
The Azolla Event (c. 49 Ma, Middle Eocene) refers to a period of approximately 800,000 years during which the floating freshwater fern _Azolla_ bloomed prolifically across the semi-enclosed Arctic Ocean, sequestering mas
Q_3_14 — Planetary Science: Mars, Venus, and Comparative Planetology
Planetary science studies the formation, composition, atmospheres, surfaces, interiors, and evolution of planets, moons, and other bodies in our solar system and beyond. Comparative planetology — examining how planets wi
ZF_5_12 — Paleocene-Eocene Thermal Maximum: Ancient Anoxic Ocean Crisis
The Paleocene-Eocene Thermal Maximum (PETM), occurring approximately 55.8 million years ago (latest Paleocene), was one of the most dramatic and rapid climate change events in the Cenozoic, offering the closest geologica
M_5_03 — Piri Reis Map and Cartographic Anomalies
The Piri Reis map is a fragment of a world map drawn on gazelle parchment by the Ottoman admiral and cartographer Piri Reis (Ahmed Muhiddin Piri) in 1513 CE, rediscovered in the Topkapi Palace library, Istanbul, in 1929.
M_3_12 — Stone Softening Claims: Mythological and Chemical Analysis
Among the most intriguing and elusive claims in alternative archaeology is the idea that ancient Andean peoples possessed a botanical or chemical method of "softening" stone — reducing hard stone (particularly the andesi
M_3_05 — Serapeum of Saqqara Precision Stone Boxes
The Serapeum of Saqqara is an underground burial complex near Memphis, Egypt, where the sacred Apis bulls of the god Ptah-Sokar-Osiris were interred from at least the New Kingdom (c. 1400 BCE) through the Ptolemaic perio
M_3_09 — Precision Granite Machining Debate: Petrie to Dunn
The debate over precision granite machining in ancient Egypt has persisted for over 130 years, originating with Sir William Matthew Flinders Petrie (1853-1942), the father of modern Egyptology, who meticulously documente
A_1_20 — Elamite and Proto-Elamite Script: Iran's Undeciphered Writing Systems
The Elamite civilization of southwestern Iran — centered on the cities of Susa and Anshan — was one of the earliest complex societies of the ancient Near East, rivaling Sumer and Akkad yet remaining far less understood d
A_1_22 — Proto-Writing Development and Precursors to Cuneiform
The transition from pre-literate record-keeping to cuneiform script spanned approximately 5,000 years, from small geometric clay tokens used for commodity tracking in the Neolithic (c. 8000 BCE) through the emergence of
U_1_24 — Overtone & Throat Singing
Overtone singing (also called throat singing or harmonic singing) is a vocal technique in which a single singer simultaneously produces two or more distinct pitches by manipulating the resonant frequencies (formants) of
U_3_19 — Ancient Tattooing Traditions
Tattooing is one of the oldest and most universal forms of human body modification, with archaeological evidence spanning at least 5,300 years and ethnographic documentation across every populated continent. The oldest k
U_3_13 — Art Restoration and Conservation: Science Meets Aesthetics
Art restoration and conservation — the practice of preserving, stabilizing, and (sometimes controversially) restoring works of art — sits at the intersection of science, aesthetics, ethics, and cultural politics. Every a
U_3_05 — Fashion and Costume History
Fashion — from Latin factio (making, doing) — encompasses clothing, accessories, and bodily presentation as systems of social communication, aesthetic expression, and cultural identity. Archaeological evidence: the oldes
U_3_10 — Printmaking and the History of the Book
Printmaking — the creation of images or text by transferring ink from a prepared surface to paper or other substrate — and the history of the book are intertwined stories of how humans multiplied information. Relief prin
U_5_13 — Documentary Film and Photography: Witness, Evidence, and Ethics
Documentary film and photography — creative works purporting to represent reality directly, serving as witness, evidence, and social commentary — occupy a uniquely charged position between art and journalism, truth and c
U_5_19 — Iconoclasm History
Iconoclasm — from Greek eikon (image) and klasma (that which is broken) — is the deliberate destruction of images, statues, monuments, or other visual representations, typically motivated by religious, political, or ideo
U_2_22 — Shamanic & Entoptic Art
The neuropsychological model of shamanic art proposes that much of humanity's oldest visual art — from Upper Paleolithic cave paintings in Europe to San Bushman rock art in southern Africa to Aboriginal art in Australia
U_2_06 — Cinema and Film History
Cinema — the art and technology of moving images — emerged from late 19th-century developments in photography and persistence of vision. Pioneer technologies: Eadweard Muybridge's sequential photographs of a galloping ho
U_2_05 — Photography and Visual Culture
Photography — from Greek phōs (light) + graphē (drawing) — transforms light into permanent images. Origins: the camera obscura (darkened chamber projecting inverted images through a pinhole) was known to Aristotle and us
U_4_10 — Puppetry and Automata
Puppetry — the animation of inanimate figures to tell stories — is among the oldest performing arts, predating written drama. Shadow puppets: wayang kulit (Indonesia — intricately carved leather puppets cast against a ba
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