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.
148 results for "Dan" — page 8 of 8
F_4_01 — Atlantis
Atlantis is the most famous lost-civilization tradition in the Western world — a powerful island empire described by Plato in two dialogues (~360 BCE) that was destroyed by the gods and "swallowed up by the sea" in a sin
ZA_4_10 — Topological Phases of Matter
The discovery of topological phases of matter — states of matter that cannot be described by Landau's conventional symmetry-breaking paradigm but are instead characterized by topological invariants (mathematical quantiti
I_5_13 — UAP Debunking and Skeptical Analysis — Identified Cases
UAP skepticism and debunking — the systematic investigation and identification of prosaic explanations for reported unidentified aerial phenomena — is an essential counterbalance to the UAP discourse and has successfully
V_4_23 — Shannon Information Theory: Entropy, Communication, and the Mathematical Theory of Information
Claude Elwood Shannon (1916–2001) published "A Mathematical Theory of Communication" in the Bell System Technical Journal in July and October 1948, founding the field of information theory. Shannon defined information qu
V_3_11 — Mathematical Optimization: Linear Programming, Convex Methods, and Gradient Descent
Mathematical optimization — finding the best solution from a set of feasible alternatives — is one of the most practically impactful branches of mathematics, with applications spanning logistics, finance, engineering, ma
V_2_22 — Imaginary Numbers: From "Truly Imaginary" to Physically Necessary
In 1545, the Italian mathematician Girolamo Cardano encountered expressions involving the square root of a negative number while solving cubic equations in his Ars Magna. He used the expression — computed with it, obtain
F_3_15 — Shared Pyramid Traditions: Egypt, Mesoamerica, China, Sudan
Pyramidal structures — monumental constructions with broad bases tapering to a point or platform at the top — were built independently by civilizations across the globe: the Egyptian pyramids (c. 2686–1550 BCE, from the
ZG_4_18 — Whistled Languages: Long-Distance Communication Through Tonal Transposition
Whistled languages — systems in which speakers transpose the phonological content of a spoken language into whistled melodies, preserving sufficient linguistic structure to carry complex messages over distances of 2–8 km
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