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Major categories
- Agriculture — Growing food and fiber: crops, soils, water, fertilizers, and the science of farming systems.
- Anthropology — The comparative study of human biology, culture, and society.
- Archaeology — The study of past human societies through their material remains.
- Artificial Intelligence — Machine learning, neural networks, and systems that perform tasks associated with intelligence.
- Astronomy — The study of celestial objects, the structure of the universe, and the physics of space beyond Earth.
- Behavioral Economics — How psychological factors shape economic decisions.
- Biology — The science of living organisms and the processes of life.
- Chemistry — The composition, structure, and transformations of matter.
- Civil Engineering — Design and construction of structures, transportation, and infrastructure.
- Cognitive Psychology — Mental processes: perception, attention, memory, and reasoning.
- Computer Science — Algorithms, data structures, complexity, and the theoretical foundations of computing.
- Computer Vision — Computational methods for interpreting images and video.
- Contract Law — The legal rules governing enforceable agreements between parties.
- Cryptography — Mathematical techniques for secure communication and data protection.
- Cultural Anthropology — The study of human culture: kinship, ritual, economy, and social organization.
- Developmental Psychology — How people change across the lifespan: physical, cognitive, and social development.
- Earth Science — The structure and processes of planet Earth.
- Ecology — The interactions of organisms with each other and their environment.
- Economics — How individuals, firms, and societies allocate scarce resources and coordinate exchange.
- Electrical Engineering — Circuits, power systems, electronics, and electromagnetism.
- Electromagnetism — The unified physics of electric and magnetic fields.
- Engineering — The application of science and mathematics to design structures, machines, and systems.
- Epistemology — The philosophy of knowledge: its nature, sources, and limits.
- Ethics — Moral philosophy: theories of right action and the good life.
- Food Science — The chemistry, biology, and physics of food: how ingredients change during cooking, preservation, and digestion.
- Genetics — Heredity: genes, their transmission, and their variation.
- Geography — The physical features of Earth, how places are mapped and measured, and how people settle and move across the landscape.
- Geology — The study of Earth's solid material: rocks, minerals, and the processes that shape them.
- Geometry — The study of space, shape, and the relations of figures.
- History — Evidence-based accounts of past events and their contexts.
- Immunology — The study of the immune system and its defenses.
- Law — The rules and institutions by which societies order conduct and resolve disputes.
- Linguistics — The scientific study of language: sounds, structure, meaning, and use.
- Literary Analysis — How literary texts produce meaning: devices, structure, and interpretation.
- Literature — Written and oral texts: fiction, poetry, drama, and the study of how they work.
- Logic — The study of valid inference and formal systems of reasoning.
- Machine Learning — Algorithms that improve from data rather than from explicit instructions.
- Macroeconomics — Economy-wide aggregates: growth, inflation, employment, and policy.
- Mathematics — Theorems, structures, and methods across pure and applied mathematics.
- Mechanical Engineering — Machines, materials, and the mechanics of solid bodies.
- Medicine — Human health and disease: the structure and function of the body, diagnosis, and treatment.
- Meteorology — The study of the atmosphere and the weather it produces.
- Microeconomics — The behavior of individual markets, consumers, and firms.
- Music — Organized sound: theory, practice, and history of musical traditions.
- Music History — The development of musical styles, practices, and institutions.
- Music Theory — The structure of music: pitch, harmony, rhythm, and form.
- Natural Language Processing — Computational methods for understanding and generating human language.
- Networking — Protocols, addressing, and the infrastructure that lets computers communicate.
- Neural Networks — Computational models of learning inspired by the structure of nervous systems.
- Neuroscience — The scientific study of the nervous system.
- Number Theory — The study of the integers and their properties.
- Oceanography — The oceans: currents, waves, chemistry, and their role in the climate system.
- Organic Chemistry — The chemistry of carbon compounds and their reactions.
- Paleontology — The study of ancient life through fossils and the fossil record.
- Pharmacology — How drugs act on the body and how the body processes them.
- Philosophy — Systematic inquiry into knowledge, reality, reason, and value.
- Phonetics and Phonology — Speech sounds: their production, acoustics, and systematic patterning.
- Physics — The study of matter, energy, space, and time.
- Physiology — How the organs and systems of the body function.
- Planetary Science — Planets, moons, and small bodies of the solar system and beyond.
- Poetry — Verse: its forms, techniques, and traditions.
- Politics — How power is organized and contested: constitutions, electoral systems, and the institutions of government.
- Probability Theory — The mathematics of uncertainty and random phenomena.
- Programming — Practical software development: languages, tools, databases, and engineering practice.
- Psychology — The scientific study of mind and behavior.
- Quantum Mechanics — The physics of the very small: quanta, waves, and measurement.
- Religion — The beliefs, texts, practices, and histories of the world's religious traditions.
- Semantics — The study of meaning in language.
- Social Psychology — How people think about, influence, and relate to one another.
- Sociology — How societies are organized, how groups and institutions shape behavior, and how social structures change over time.
- Statistics — The science of collecting, summarizing, and drawing conclusions from data.
- Stellar Astronomy — Stars: their formation, structure, evolution, and endpoints.
- Syntax — The rules and structures by which words combine into sentences.
- Visual Arts — Painting, sculpture, printmaking, and photography: the techniques, materials, and ideas behind the images people make.
- Web Development — Building software delivered over the web: HTTP, APIs, and frontend practice.
Common tags
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