RESEARCH BASE

Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

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.

72 results for "conic section" — page 1 of 4

J_5_14 Verified Ancient Technology

J_5_14 — Greek Mathematical Instruments: Precision Tools

Ancient Greek civilization produced the most sophisticated mathematical and scientific instruments of the pre-modern world — devices that embody the Greek integration of theoretical mathematics with practical engineering

Greek instrument Antikythera compass ruler sundial
V_1_10 Verified Mathematics & Information

V_1_10 — Ancient Greek Mathematics

Ancient Greek mathematics (c. 600 BCE – 500 CE) transformed mathematics from a collection of empirical recipes into a deductive science built on axioms, definitions, and rigorous proof. Thales of Miletus (c. 624–546 BCE)

Greek mathematics Euclid Elements Pythagoras Archimedes Thales
ZC_5_09 Verified Social Science

ZC_5_09 — Sociology of Race and Ethnicity: Construction, Racism, and Intersectionality

The sociology of race and ethnicity studies how racial and ethnic categories are socially constructed, how racism operates as a system of power, and how racial and ethnic identities shape life chances, social institution

race ethnicity racism social construction Critical Race Theory intersectionality
X_5_02 Verified Medicine & Healing

X_5_02 — Medical Illustration and Anatomical Art

Medical illustration and anatomical art — the visual representation of the human body for scientific and educational purposes — is a discipline where art and science converge with extraordinary results. The ability to ac

medical illustration anatomical art Vesalius anatomy dissection wax models
X_1_15 Verified Medicine & Healing

X_1_15 — Greek and Roman Medicine: Hippocrates, Galen, and Western Medical Foundations

Greek and Roman medicine constitutes the foundational tradition of Western medical science, spanning from the 5th century BCE to the 3rd century CE and dominating medical thought for over 1,500 years. Hippocrates of Kos

Hippocrates Galen Asclepius Asclepieia humorism four humors
X_4_07 Verified Medicine & Healing

X_4_07 — Midwifery and Obstetric History

Midwifery and obstetrics — the care of women during pregnancy, childbirth, and the postpartum period — have been practiced since prehistory, making birth attendance one of the oldest forms of specialized health care. Anc

midwifery obstetrics childbirth birth attendant forceps cesarean section
W_1_06 Verified World Civilizations

W_1_06 — Nabataean Civilization — Petra, Water Engineering, and Dushara

- [Quick Summary](#quick-summary)

Nabataean Petra Al-Khazneh Dushara Al-Uzza water engineering
C_2_10 Verified Global Traditions

C_2_10 — Basque Language, Culture, and Serpent Mythology

This document examines Basque Language, Culture, and Serpent Mythology, a topic within the Global Traditions research area. Key areas of investigation include Euskara — Europe's Last Language Isolate, Linguistic Features

Basque Euskara language isolate Sugaar Mari Akerbeltz
ZG_1_18 Credible Linguistics & Communication

ZG_1_18 — Sound Symbolism and Phonosemantics

Sound symbolism — the non-arbitrary association between speech sounds and meaning — challenges the foundational Saussurean principle that the relationship between a word's form and its meaning is entirely arbitrary (Ferd

sound-symbolism phonosemantics bouba-kiki ideophones onomatopoeia iconic-language
ZG_1_20 Credible Linguistics & Communication

ZG_1_20 — Sign Language & Gestural Origins of Language

The study of sign languages has profoundly transformed our understanding of both language and its evolutionary origins — demonstrating that language is modality-independent (not inherently tied to speech) and providing c

sign language gestural origin language evolution ASL BSL William Stokoe
ZG_4_20 Credible Linguistics & Communication

ZG_4_20 — Sign Language Linguistics & Deaf Culture

Sign languages are fully developed natural languages with complete phonological, morphological, syntactic, and semantic systems — not manual codes for spoken languages, not pantomime, and not universal. There are over 30

sign language American Sign Language ASL Deaf culture Stokoe phonology
ZG_4_02 Verified Linguistics & Communication

ZG_4_02 — Sign Language — Gestural Communication and Deaf Culture

Sign languages are fully developed natural languages that use the visual-gestural modality — hands, face, body, and spatial relationships — instead of the auditory-vocal channel to express the same range of linguistic co

sign language ASL BSL Stokoe Deaf culture manual communication
ZG_3_16 Credible Linguistics & Communication

ZG_3_16 — Sign Language Typology: Structure, Diversity, and the Linguistics of Gesture

Sign languages — natural human languages that use the visual-gestural modality rather than the vocal-auditory channel — are among the most powerful demonstrations that human linguistic capacity is not bound to speech. Th

sign language ASL BSL Stokoe phonology iconicity
ZG_3_04 Verified Linguistics & Communication

ZG_3_04 — Gesture and Body Language in Communication

Gesture and body language constitute a fundamental dimension of human communication that operates alongside, independently of, and sometimes in contradiction to spoken language. Research in kinesics (the study of body mo

gesture body language nonverbal communication kinesics emblem illustrator
ZC_3_07 Verified Social Science

ZC_3_07 — Disability Studies

Disability studies is an interdisciplinary field examining disability as a social, cultural, and political phenomenon rather than a purely medical one. The foundational distinction is between the medical model (disabilit

disability studies social model medical model impairment ableism ADA
ZC_5_15 Verified Social Science

ZC_5_15 — Feminist Anthropology: Gender, Kinship, and Reproductive Politics

Feminist anthropology emerged in the 1970s as a transformative critique of a discipline that had largely ignored, marginalized, or misrepresented women's lives, perspectives, and contributions. Early feminist anthropolog

feminist anthropology gender Sherry Ortner Gayle Rubin kinship reproductive politics
ZC_4_18 Verified Social Science

ZC_4_18 — Aboriginal Australian Kinship Systems

Aboriginal Australian kinship systems represent some of the most elaborate social classification frameworks ever documented by anthropology. Operating through moiety (2-part), section (4-part), and subsection (8-part) sy

Aboriginal-kinship section-system moiety skin-names classificatory-kinship Australian-social-organization
ZC_2_09 Verified Social Science

ZC_2_09 — Sociology of Gender and Sexuality

The sociology of gender and sexuality examines how societies construct, enforce, and contest gender categories and sexual norms. The sex-gender distinction (introduced to sociology by Ann Oakley, Sex, Gender and Society,

gender sexuality feminism patriarchy gender roles social construction
G_1_12 Verified Modern Frameworks

G_1_12 — Geoarchaeology — Sediments, Soils, and Site Formation Processes

Geoarchaeology applies the principles and methods of earth sciences — geology, geomorphology, sedimentology, soil science, and geochemistry — to archaeological problems, focusing on the geological context of archaeologic

geoarchaeology sediment soil stratigraphy micromorphology site formation
G_1_14 Verified Modern Frameworks

G_1_14 — Archaeometry — Physical Science Methods in Archaeology

Archaeometry — the application of physical and chemical science methods to archaeological materials — encompasses a broad range of analytical techniques used to determine the composition, provenance, manufacturing techno

archaeometry XRF NAA ICP-MS Raman FTIR