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📘 Science has a history, not just a method

Thomas Kuhn's The Structure of Scientific Revolutions, first published in 1962, asks what scientific work looks like when we follow it through time.

3
lessons
~15 min
to learn
Adults
level
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What you’ll learn

  1. History and paradigmsExplain why Kuhn distinguishes normal science from revolutionary change and what a paradigm supplies.Kuhn studies scientific practice historically; paradigms coordinate normal puzzle-solving research.
  2. Crisis and revolutionDescribe how anomalies become crises and what a revolution changes beyond one new fact.Persistent anomalies can weaken a framework until a revolution reorganizes questions and standards.
  3. Choice and legacyExplain incommensurability carefully and assess Kuhn’s account of progress and later debate.Rival paradigms may lack one neutral ruler; progress gains problem-solving resources without a guaranteed endpoint.

Questions this course answers

What does a paradigm mainly provide for a scientific community?

Kuhn uses paradigm to describe shared achievements and practices that organize normal research.

Why does Kuhn compare normal science to puzzle-solving?

The analogy shows that normal science is active and difficult, but it does not usually reopen the paradigm's foundations.

What makes an anomaly historically important?

Anomalies matter when they persist, connect with other difficulties, or expose limits in the existing framework.

Match each Kuhnian stage to its role

Kuhn describes change as ordinary work encountering persistent difficulty and eventually giving way to a different research framework.

What does incommensurability mean, and what does it not mean?

Kuhn challenges the idea that theory choice is always settled by one algorithm, not the idea that evidence and argument matter.

How does Kuhn describe progress through revolutions?

Kuhn allows genuine gains in scope and problem-solving while rejecting a guaranteed linear path to a final worldview.

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