Natural Sciences¶

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The study of the physical and biological world. Proceed by empirical observation and theory-guided experiment. Claims are tested against measurement, and the hallmark artefact is the law or mechanism.

188 primes · 1,899 domain-specific abstractions across 8 domains in this group. Both layers draw on the same canonical roster; a domain's group is derived from it, never stored on an entity.

Domain	Primes	Domain-specific
Astronomy & Astrophysics	0	83
Biology & Ecology	49	393
Chemistry & Materials Science	24	304
Environmental Science & Climate Studies	6	47
Geology & Earth Sciences	9	232
Marine Science & Oceanography	9	38
Neuroscience	16	61
Physics	75	741

Astronomy & Astrophysics

The study of celestial bodies and the physical processes that govern them, from stellar structure and galactic dynamics to cosmology. Canonical traditions: observational astronomy, stellar astrophysics, extragalactic astronomy, cosmology, planetary science.

See also: Physics, Mathematics, Geology & Earth Sciences (planetary science)

83 domain-specific abstractions

Biology & Ecology

The study of living systems across scales — molecular, cellular, organismal, population, community, ecosystem. Characterized by the interplay of mechanism and evolutionary explanation. Canonical traditions: Darwinian evolution, cell biology, genetics, physiology, ecology, systems biology.

49 primes

393 domain-specific abstractions

Chemistry & Materials Science

The study of matter at the molecular level — its composition, structure, reactions, and engineered properties. Canonical traditions: stoichiometry and equilibrium, organic and inorganic chemistry, physical chemistry, polymer and solid-state chemistry, nanomaterials.

24 primes

304 domain-specific abstractions

Environmental Science & Climate Studies

The study of Earth's biosphere and climate system as coupled, dynamic, and increasingly human-influenced. Integrates ecology, atmospheric science, biogeochemistry, and sustainability science. Canonical traditions: IPCC climate science, planetary boundaries, ecosystem services, integrated assessment modeling.

6 primes

47 domain-specific abstractions

Geology & Earth Sciences

The study of the solid Earth, its materials, structure, and history — including plate tectonics, mineralogy, stratigraphy, geomorphology, and paleoclimate — together with atmospheric science, hydrology, and oceanography as planet-scale companion disciplines.

9 primes

232 domain-specific abstractions

Marine Science & Oceanography

The integrated study of the ocean — physical, chemical, biological, and geological — from coastal processes to deep-sea ecosystems and ocean-atmosphere coupling.

9 primes

38 domain-specific abstractions

Neuroscience

The study of the nervous system — from molecular and cellular mechanisms to circuits, systems, and whole-brain behavior. Canonical traditions: neuroanatomy, cellular and molecular neuroscience, systems neuroscience, cognitive neuroscience, computational neuroscience.

16 primes

61 domain-specific abstractions

Physics

The study of matter, energy, space, time, and their interactions, expressed as mathematical laws validated by controlled measurement. Distinguished methodologically by the demand that claims reduce to experiment. Canonical traditions: classical mechanics, electromagnetism, thermodynamics and statistical mechanics, quantum mechanics, relativity, field theory.

See also: Mathematics (formalism), Astronomy & Astrophysics (physics at cosmological scale), Chemistry & Materials Science (physics at molecular scale), Engineering & Design (beyond software)

75 primes

741 domain-specific abstractions