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.
3,447 results for "Guelb er Richat" — page 88 of 173
G_2_10 — Zooarchaeology — Animal Bones as Cultural Evidence
Zooarchaeology (also called archaeozoology) is the study of animal remains — primarily bones, teeth, antler, horn, and shell — recovered from archaeological sites, to reconstruct past human-animal relationships, includin
G_2_02 — Agent-Based Modeling and Social Simulation
Agent-based modeling (ABM) is a computational framework in which large numbers of autonomous "agents" — each following simple, individually specified rules — interact with one another and their environment, and complex c
G_2_14 — Information Theory Applied to Ancient Scripts and Codes
Information theory — founded by Claude Shannon (1948) — provides a mathematical framework for quantifying the information content, redundancy, and statistical structure of communication systems. When applied to ancient s
O_1_20 — Schumann Resonance
The Schumann resonances are a set of spectral peaks in the extremely low frequency (ELF) portion of the Earth's electromagnetic field spectrum, generated by lightning discharges exciting the resonant cavity formed betwee
O_1_13 — South Atlantic Anomaly: Geomagnetic Weakness and Radiation Belt Gap
The South Atlantic Anomaly (SAA) is the largest known weakness in Earth's magnetic field, centered over South America and the South Atlantic Ocean (roughly between Brazil and southern Africa), where the inner Van Allen r
O_1_18 — Ball Lightning and Earthquake Lights: Transient Luminous Phenomena
Ball lightning — a luminous, roughly spherical phenomenon observed during or near thunderstorms, typically 10–50 cm in diameter and lasting 1–10 seconds — and earthquake lights (EQLs) — luminous atmospheric phenomena obs
O_1_08 — Aurora Borealis and Geomagnetic Storms
The aurora borealis (northern lights) and aurora australis (southern lights) are luminous atmospheric phenomena caused by charged particles from the solar wind interacting with Earth's magnetosphere and exciting atmosphe
O_1_19 — Naga Fireballs
The Naga fireballs (bung fai phaya nak, บั้งไฟพญานาค, literally "Naga sky rockets") are glowing orbs reported to rise from the Mekong River in the Nong Khai Province of northeastern Thailand (and the opposite Laotian ban
O_1_21 — Blood Rain
Blood rain (also called red rain or chromatic rain) refers to precipitation events where rain is colored red, orange, yellow, or brown, giving the appearance of falling blood. Such events have been reported throughout re
O_1_15 — Urban Heat Islands
The urban heat island (UHI) effect — the phenomenon whereby urban areas experience significantly higher temperatures than surrounding rural landscapes — was first scientifically documented by amateur meteorologist Luke H
O_2_05 — Tektites and Meteorite Impact Glass
Tektites are natural glassy objects formed when hypervelocity meteorite impacts melt and eject terrestrial target rock, which solidifies during flight through the atmosphere and lands hundreds to thousands of kilometers
O_2_20 — Hollow Earth Theory
The Hollow Earth theory proposes that the planet's interior is partially or entirely hollow, potentially containing habitable spaces, inner suns, atmospheres, or even advanced civilizations. This idea has ancient roots i
O_2_22 — Carolina Bay Anomalies
The Carolina bays are a collection of approximately 500,000 shallow, elliptical depressions concentrated along the Atlantic Coastal Plain of the southeastern United States, from New Jersey to northern Florida, with the h
O_2_19 — Expanding Earth Theory
The expanding Earth hypothesis proposes that the planet has significantly increased in radius (and possibly mass) over geological time, with continental drift and ocean basin formation being consequences of this expansio
O_2_17 — Ball Lightning and Plasma Physics: Transient Luminous Phenomena
Ball lightning — a luminous, roughly spherical phenomenon occurring during or near thunderstorms, typically 10–50 cm in diameter, persisting for seconds to minutes, and sometimes reported to pass through solid barriers o
O_4_18 — Crop Circle Analysis
Crop circles are geometric patterns created by the flattening of cereal crops (wheat, barley, rapeseed, and others), ranging from simple circles to extraordinarily complex fractal-like designs spanning hundreds of meters
O_4_17 — Ley Lines
Ley lines are hypothetical alignments connecting ancient monuments, hilltops, and other significant landscape features along straight paths across the land. The concept was first articulated by Alfred Watkins (a Hereford
O_4_16 — Singing Sands and Booming Dunes: Acoustic Geomorphology
Certain sand dunes and beaches worldwide produce sustained, audible tones — a phenomenon documented since antiquity and reported by travelers from Marco Polo (1295 CE, describing "singing sands" in the Taklamakan Desert)
O_3_19 — Ice Circles
Ice circles (also called ice discs or ice pans) are circular slabs of ice that form in slow-moving rivers, streams, and occasionally lakes, and rotate slowly on the water surface. They range from a few centimeters to ove
O_5_14 — Ocean Acoustic Anomalies: Bloop, Julia, Upsweep, and SOSUS
Since the end of the Cold War, the repurposing of the US Navy's SOSUS (Sound Surveillance System) — a network of fixed underwater hydrophone arrays originally deployed across the Atlantic and Pacific ocean floors during
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