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.
2,646 results for "SI second" — page 12 of 133
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
O_1_14 — Sprites, Elves, and Blue Jets: Upper Atmosphere Transient Luminous Events
Transient Luminous Events (TLEs) are a family of large-scale optical and electrical phenomena occurring in the upper atmosphere (stratosphere, mesosphere, and lower ionosphere, ~20-100 km altitude) above active thunderst
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_11 — Earthquake Lights — Comprehensive Evidence and Mechanisms
Earthquake lights (EQLs) are anomalous luminous phenomena — flashes, glows, flames, orbs, and columns of light — reported in association with earthquakes throughout recorded history. Once dismissed as anecdotal or imagin
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_2_18 — Ball Lightning and Earthquake Lights: Anomalous Atmospheric Luminosities
Ball lightning and earthquake lights (EQL) represent two of the most enduring unsolved problems in atmospheric and geophysics. Ball lightning — luminous spheres typically 10–50 cm in diameter, persisting for seconds to m
O_2_08 — Weathering, Erosion, and Deep Time Landscape Evolution
Weathering (the in-situ breakdown of rock and minerals) and erosion (the transport of weathered material by water, wind, ice, and gravity) are the fundamental surface processes that, operating over deep time (millions to
O_4_09 — Singing Sands, Booming Dunes, and Anomalous Desert Acoustics
Singing sands and booming dunes are natural acoustic phenomena in which sand produces audible sound — sometimes at extraordinary volume (up to 105 dB, comparable to a chainsaw at 1 m) — when disturbed by wind, avalanchin
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_4_12 — Libyan Desert Glass: Silica Mystery and Impact Hypotheses
Libyan Desert Glass (LDG) is a naturally occurring, nearly pure silica glass (~98% SiO₂) found scattered across a roughly 6,500 km² area of the Great Sand Sea on the Egypt-Libya border in the western Sahara Desert. The g
O_3_18 — Rogue Waves: Extreme Ocean Dynamics and Nonlinear Wave Physics
Rogue waves (also called freak waves, killer waves, or extreme waves) are individual ocean waves whose height exceeds twice the significant wave height ($H > 2H_s$) of their surrounding sea state, appearing without warni
O_5_09 — Karst Topography: Towers, Sinkholes, and Dissolved Landscapes
Karst topography is a distinctive landscape formed by the chemical dissolution of soluble bedrock — primarily limestone (CaCO₃), but also dolomite, gypsum, and evaporites — by naturally acidic water (CO₂-enriched rainwat
T_4_18 — Forensic Psychology: Criminal Behavior, Assessment, and Justice
Forensic psychology — the application of psychological science to legal and criminal justice systems — encompasses criminal profiling, eyewitness testimony reliability, risk assessment of violence and recidivism, compete
T_4_11 — Propaganda and Persuasion: Techniques, Psychology, and Modern Information Warfare
Propaganda — the systematic dissemination of information (true, distorted, or fabricated) to shape public attitudes, beliefs, and behaviors in service of a particular agenda — and persuasion — the art and science of chan
T_2_20 — Personality Disorders: Cluster Analysis and Dimensional Models
Personality disorders (PDs) — enduring patterns of inner experience and behavior that deviate markedly from cultural expectations, are pervasive and inflexible, and cause significant functional impairment — affect approx
T_2_14 — Hypnosis: Suggestion, Trance, and the Science of Hypnotic Phenomena
Hypnosis — a procedure involving an induction (typically relaxation and focused attention instructions) followed by suggestions for changes in perception, sensation, emotion, thought, or behavior — has oscillated between
T_2_15 — Gratitude and Forgiveness: Prosocial Emotions, Health Benefits, and Psychological Resilience
Gratitude and forgiveness — two central topics in positive psychology — represent prosocial emotional responses that profoundly influence interpersonal relationships, mental health, and physical well-being. Gratitude — t
T_1_14 — Self-Determination Theory: Autonomy, Competence, Relatedness, and Intrinsic Motivation
Self-Determination Theory (SDT) — developed by Edward Deci and Richard Ryan (University of Rochester, 1985–present) — is one of the most influential and empirically supported theories of human motivation, proposing that
T_1_16 — Positive Psychology: The PERMA Model and Human Flourishing
Positive psychology — the scientific study of optimal human functioning, well-being, and the conditions enabling individuals and communities to flourish — was formally launched as a distinct movement by Martin Seligman d
T_3_14 — Cognitive Load Theory: Working Memory, Schema Acquisition, and Instructional Design
Cognitive Load Theory (CLT) — developed by John Sweller (University of New South Wales, 1988–present) — is the most influential theory connecting cognitive architecture (specifically the severe limitations of working mem
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