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All Theories

Named scientific theories, laws, hypotheses and models: the explanatory claims a discipline holds, distinct from the concepts they are built from and the experiments that tested them. It excludes individual experiments, which are recorded separately with a connection back to the theory they tested.

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Concept Term Origin
1630 1
All Theories
Filter Results253 entries

Heliocentrism

Astronomy

Henry's Law

Chemistry

Hess's Law

Chemistry

Higgs Mechanism

Physics

Hodgkin's Insulin Structure

Biology

Hooke's Law

Physics

Hubble bubble (astronomy)

Astronomy

Hubble's Law

Astronomy

Humorism

Biology

Hygiene Hypothesis

Biology

Ideal Gas Law

Chemistry

Inductivism

Formal Sciences

Information Theory

Computer Science

Island Biogeography Theory

Biology

Isostasy

Geology

Kepler's Laws of Planetary Motion

Astronomy

Kin Selection

Biology

Kinetic Theory of Gases

Physics

Kirchhoff's Circuit Laws

Physics

Kolmogorov Complexity

Computer Science

Lamarckian Inheritance

Genetics

Lamarckism

Biology

Late Heavy Bombardment

Astronomy

Law of Conservation of Mass

Chemistry

Law of Definite Proportions

Chemistry

Law of Large Numbers

Mathematics

Law of Multiple Proportions

Chemistry

Law of specific nerve energies

Biology

Law of Superposition

Geology

Le Chatelier's Principle

Chemistry

Lewis Acid-Base Theory

Chemistry

Linguistic Relativity

Formal Sciences

Loop Quantum Gravity

Physics

Luminiferous Aether

Physics

Mantle Convection

Geology

Mantle Plume Hypothesis

Geology

Many-Worlds Interpretation

Physics

Mass-Energy Equivalence

Physics

Maxwell's Equations

Physics

Mendelian Inheritance

Genetics

Metabolic Theory of Ecology

Biology

Methodology of Scientific Research Programmes

Formal Sciences

Miasma Theory

Biology

Milankovitch Cycles

Earth Sciences

Modern Synthesis

Biology

Molecular Clock

Genetics

Molecular Orbital Theory

Chemistry

Moore's Law

Computer Science

Muller's Ratchet

Genetics

Multiregional Origin of Modern Humans

Biology

Mutationism

Genetics

Natural Selection

Biology

Nebular Hypothesis

Astronomy

Neuron Doctrine

Biology

Neutral Theory of Molecular Evolution

Genetics

Newton's Laws of Motion

Physics

Neyman-Pearson Lemma

Mathematics

Nocturnal bottleneck

Biology

Noether's Theorem

Mathematics

Non-Euclidean Geometry

Mathematics

Numerical Weather Prediction

Earth Sciences

Octet Rule

Chemistry

Ohm's Law

Physics

Olbers' Paradox

Astronomy

One Gene-One Enzyme Hypothesis

Genetics

Operon Model

Genetics

Optimal Foraging Theory

Biology

Oxygen Theory of Combustion

Chemistry

P versus NP Problem

Computer Science

Panspermia

Astronomy

Paradigm Shift

Formal Sciences

Parental Investment Theory

Biology

Parity Violation

Physics

Pauli Exclusion Principle

Physics

Peano Axioms

Mathematics

Pearson's Chi-Squared Test

Mathematics

Phlogiston Theory

Chemistry

Photoelectric Effect

Physics

Planck's Law

Physics

Plate Tectonics

Geology

Polar Front Theory

Earth Sciences

Prime Number Theorem

Mathematics

Principle of Cross-Cutting Relationships

Geology

Principle of Faunal Succession

Geology

Principle of Original Horizontality

Geology

Prion

Biology

Protein Sequencing

Biology

Punctuated Equilibrium

Biology

Pythagorean Theorem

Mathematics

Quantum Chromodynamics

Physics

Quantum Electrodynamics

Physics

Quantum Entanglement

Physics

Quantum Field Theory

Physics

Quantum Theory

Physics

Quark Model

Physics

Rainbow gravity theory

Physics

Ramsey Theory

Mathematics

Raoult's Law

Chemistry

Recapitulation Theory

Biology

Recent African Origin of Modern Humans

Biology
Sources
1. Online Etymology Dictionary: theory
Online Etymology DictionaryOnline Etymology Dictionary, theory entry, general sense
Quote, Online Etymology Dictionary, theory entry, general sense
The general sense of "an intelligible explanation based on observation and reasoning" is from 1630s.
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