Alphabetical
principle
[noun]
In the sciences, a principle is a fundamental, primary, or general law or truth. For instance, one of the most basic principles in physics is the causality principle, which states that everything that happens has a direct cause.
Appears in modules:
- Adaptation The case of penguins
- Animal Behavior Causes and approaches to studying behavior
- Animal Ecology Competition, predation, and cooperation
- Atomic Theory II Ions, neutrons, isotopes and quantum theory
- Atomic Theory III Wave-particle duality and the electron
- Atomic Theory IV Quantum numbers and orbitals
- Biodiversity I Definitions and patterns of diversity
- Blood Biology I Components of blood
- Carlos J. Finlay Eradicating yellow fever
- Cellular Organelles I Endosymbiosis and membrane-bound organelles
- Charles Darwin I The Origin of Species
- Charles Darwin II Natural selection
- Charles Darwin III Descent with modification
- Chemical Bonding Ionic and covalent bonds and polarity
- Chemical Equations Using shorthand to show balanced reactions
- Chemical Reactions Types of reactions and the laws that govern them
- Circulation in the Atmosphere Earth's tilt, orbit, rotation, and the redistribution of energy
- Comparison in Scientific Research Uncovering statistically significant relationships
- Craig Lee Ice patch archaeologist
- Creativity in Science How scientists decide what to study
- Data Analysis and Interpretation Revealing and explaining trends
- Defining Energy Forms of energy, conversions, and measuring
- Description in Scientific Research Observations and multiple working hypotheses
- Diffusion I Random molecular movement and influences on diffusion rate
- DNA I The genetic material
- DNA II The structure of DNA
- DNA III The replication of DNA
- Earth Structure A virtual journey to the center of Earth
- Earth's Atmosphere Composition, temperature, and pressure
- Ecosystem Services Categories and valuation
- Electromagnetism and Light Introduction to the electromagnetic spectrum
- Ellen Ochoa Engineer and astronaut
- Energy Metabolism I Glycolosis and the Krebs cycle
- Experimentation in Scientific Research Variables and controls in practice
- Exponential Equations I Growth and decay
- Exponential Equations II The constant e and limits to growth
- France Anne-Dominic Córdova Climbing through astrophysics and science policy
- Franklin Chang Díaz Propulsion pioneer for future generations of astronauts
- From Stable Chromosomes to Jumping Genes The work of Barbara McClintock
- Future of Human Evolution Artificial selection and transhumanism
- Gene Expression Enzymes and hereditary conditions
- Gravity The law of universal gravitation
- History of Earth's Atmosphere I The origin of the modern atmosphere
- History of Earth's Atmosphere II The rise of atmospheric oxygen
- Independent Assortment Mendel's testcrosses and Punnett squares
- Inheritance Mendel's experiments and laws
- Introduction to Descriptive Statistics Using mean, median, and standard deviation
- Kinetic-Molecular Theory Molecule collisions, the mean free path, and modern KMT
- Linear Equations Relationships with two variables
- Membranes and Chemical Transport Absorption, distribution, and storage of substances in organisms
- Modeling in Scientific Research Simplifying a system to make predictions
- Nuclear Chemistry Radiation, half-life, and nuclear reactions
- Nuclear Chemistry I Radiation, half-life, and nuclear reactions
- Photosynthesis I Harnessing the energy of the sun
- Population Genetics Hardy-Weinberg and genetic drift
- Properties of Gases The gas laws and the ideal gas equation
- Properties of Solids The influence of crystal structure on behavior
- Revolutionzining Medicine with Monoclonal Antibodies The work of César Milstein
- Ruth Benerito Using basic physical chemistry to solve practical problems
- Scientific Controversy Development and resolution of controversies
- Scientific Ethics Ethical standards and their implications
- Scientific Institutions and Societies Types of institutions and their influence
- Scientists and the Scientific Community The experiences that shape scientists
- Statistical Techniques Constructing a confidence interval
- Statistics in Science Origins of descriptive and inferential statistics
- Taxonomy I What's in a name?
- Taxonomy II Nomenclature
- The Carbon Cycle Geology, biology, and the impact of human activities
- The Founding of Neuroscience The work of Santiago Ramón y Cajal and Camillo Golgi
- The How and Why of Scientific Meetings How to approach attending a meeting
- The Nature of Light Particle and wave theories
- The Nature of Scientific Knowledge What is it and why should we trust it?
- The Nitrogen Cycle Of microbes and men
- The Phosphorus Cycle Phosphates and fertilizer
- The Piltdown Hoax A lesson on confirmation bias in science
- The Practice of Science An introduction to research methods
- The Process of Science Key concepts in thinking like a scientist
- The Rock Cycle Uniformitarianism and recycling
- The Silicate Minerals The silica tetrahedron and Earth's most common minerals
- Theories, Hypotheses, and Laws Definitions, examples, and their roles in science
- Thermodynamics I Caloric theory, latent heat, and the First Law of Thermodynamics
- Tracking Endangered Jaguars across the Border The work of Sergio Avila
- Uncertainty, Error, and Confidence Characterizing natural variability and human error
- Uncovering the Mysteries of Chronic Mountain Sickness The work of Fabiola Léon-Velarde
- Understanding Scientific Journals and Articles How to approach reading journal articles
- Utilizing the Scientific Literature The record of scientific progress
- Wave Mathematics Trigonometric functions
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