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.
160 results for "van Prooijen" — page 8 of 8
F_1_01 — Trans-Oceanic Contact
Mainstream history asserts that the Americas were isolated from the Old World from ~11,000 BCE until Columbus (1492 CE), with the exception of brief Norse contact (~1000 CE). However, chemical evidence (cocaine and nicot
F_2_02 — Silk Road Knowledge Exchange — Technology, Religion, and Cultural Transmission
The Silk Road — more accurately Silk Routes, a network of overland and maritime trade corridors connecting China, Central Asia, South Asia, Persia, Arabia, and the Mediterranean from roughly 130 BCE to 1453 CE — was the
F_2_04 — Obsidian Trade Networks: Archaeological Tracers of Ancient Exchange
Obsidian — naturally occurring volcanic glass formed when felsic lava cools rapidly — was one of the most valued materials in the prehistoric world. Its conchoidal fracture produces the sharpest edges known (thinner than
F_2_12 — Saharan Trade Routes: Gold, Salt, and Knowledge Across the Desert
The trans-Saharan trade routes — a network of caravan trails crossing the world's largest hot desert (~9 million km²) between the Mediterranean coast and sub-Saharan West Africa — were among the most important long-dista
F_2_18 — Ancient Trade in Aromatics: Frankincense, Myrrh, and Sacred Resins
Frankincense (Boswellia sacra and related species) and myrrh (Commiphora myrrha) — aromatic tree resins harvested from the arid landscapes of southern Arabia (Oman's Dhofar region, Yemen's Hadramawt) and the Horn of Afri
F_4_14 — Ancient DNA and Migration Evidence
Ancient DNA (aDNA) analysis has transformed the study of human migration and cultural connections, providing direct genetic evidence for population movements that were previously inferred indirectly from archaeology, lin
ZA_1_06 — Quantum Tunneling: Traversing the Classically Forbidden
Quantum tunneling is the phenomenon where particles traverse energy barriers that classical physics strictly forbids — a direct consequence of quantum mechanics' wave-like description of matter. First explained by George
ZA_1_09 — Casimir Effect and Vacuum Energy Forces
The Casimir effect, predicted by Dutch physicist Hendrik Casimir in 1948 and experimentally confirmed with increasing precision since the late 1990s, is one of the most remarkable demonstrations that the quantum vacuum i
ZA_5_02 — Quantum Computing and Qubit Technologies
Quantum computing exploits the principles of quantum mechanics — superposition (a qubit can exist in a combination of 0 and 1 simultaneously), entanglement (qubits can share correlations impossible in classical systems),
I_3_06 — Nimitz Tic-Tac Encounter (2004) — Case Study
The USS Nimitz "Tic-Tac" encounter of November 14, 2004, is arguably the most evidentiarily robust UAP case in recorded history. During routine carrier strike group exercises approximately 100 miles southwest of San Dieg
I_5_12 — AAWSAP / Skinwalker Ranch — DIA Program Analysis
The Advanced Aerospace Weapon System Applications Program (AAWSAP) was a classified Defense Intelligence Agency (DIA) program that operated from 2008 to 2012 with approximately $22 million in funding, secured through a C
I_4_04 — UAP Propulsion Theories and Metamaterials
The observed performance characteristics attributed to UAP — instantaneous acceleration, hypersonic speed without sonic booms, apparent anti-gravity hover, and trans-medium travel — would require propulsion physics far b
J_1_00 — Energy Acoustic Advanced: Subfolder Summary
G_1_20 — Dendrochronology, Luminescence & Advanced Dating Methods
Beyond radiocarbon dating, archaeology and geochronology rely on a suite of complementary dating methods, each with distinct strengths, limitations, and applicable time ranges. Dendrochronology (tree-ring dating), pionee
S_4_10 — Space Elevators and Advanced Launch Technology
Space access remains the fundamental bottleneck for space development — current chemical rockets achieve orbit at $1,500–$5,000/kg to low Earth orbit (SpaceX Falcon 9, ~$2,700/kg; Starship aims for <$100/kg but is unprov
S_2_18 — Biosecurity and Dual-Use Research: Risks of Advanced Biotechnology
Biosecurity — the prevention of misuse of biological agents, technologies, and knowledge for hostile purposes — has become a critical concern as advances in synthetic biology, DNA synthesis, gene editing (CRISPR-Cas9), a
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_2_13 — Surrealism: Dream Art, Automatism, and the Unconscious Mind
Surrealism — the most influential avant-garde art movement of the 20th century — sought to revolutionize human experience by resolving the contradiction between dream and reality into a higher "surreality." Founded by An
D_3_16 — Jericho: Oldest Walled Settlement and Neolithic Revolution
Jericho (Arabic: Arīḥā; Hebrew: Yeriḥo; modern Tell es-Sultan) — an ancient settlement mound beside the perennial spring of Ain es-Sultan in the southern Jordan Valley, approximately 10 km north of the Dead Sea and 258 m
I_4_11 — Propulsion Physics: Theoretical Frameworks for UAP Motion
The reported flight characteristics of UAP — instantaneous acceleration from hover to hypersonic speed, absence of visible propulsion (no exhaust, no combustion, no sonic boom), transmedium travel (air to water and back
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