science: The Scientific Method

The scientific method has evolved over many centuries and has now come to be described in terms of a well-recognized and well-defined series of steps. First, information, or data, is gathered by careful observation of the phenomenon being studied. On the basis of that information a preliminary generalization, or hypothesis, is formed, usually by inductive reasoning, and this in turn leads by deductive logic to a number of implications that may be tested by further observations and experiments (see induction; deduction). If the conclusions drawn from the original hypothesis successfully meet all these tests, the hypothesis becomes accepted as a scientific theory or law; if additional facts are in disagreement with the hypothesis, it may be modified or discarded in favor of a new hypothesis, which is then subjected to further tests. Even an accepted theory may eventually be overthrown if enough contradictory evidence is found, as in the case of Newtonian mechanics, which was shown after more than two centuries of acceptance to be an approximation valid only for speeds much less than that of light.

Sections in this article:

• Introduction
• Promise and Problems of Modern Science
• Modern Science and Technology
• Astronomy beyond the Visual Spectrum
• The Abstraction of Mathematics
• Biology Becomes an Interdisciplinary Science
• Advances in Chemistry
• Quantum Theory and the Theory of Relativity
• The Impact of Elementary Particles
• Revolutions in Modern Science
• Science and the Industrial Revolution
• New Ideas in Biology
• Birth of Modern Geology
• Advances in Astronomy
• Innovations in Chemistry
• The Evolution of Mathematics and Physics
• The Age of Classical Science
• The Impact of Sir Isaac Newton
• Improved Communication of Scientific Knowledge
• The Rejection of Traditional Paradigms
• The Scientific Revolution
• The Craft Tradition and Early Empiricism in Europe
• Muslim Preservation of Learning
• Scientific Progress in China and India
• Influence of the Alexandrian Schools
• Early Greek Contributions to Science
• Practical Applications in the Ancient Middle East
• The Beginnings of Science
• Branches of Specialization
• Role of Measurement and Experiment
• The Scientific Method
• Bibliography

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2024, Columbia University Press. All rights reserved.

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