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Kuhn's Jellyfish

Kuhn's "example illustrates how the entrenched expectations of experimental outcomes and prescribed instrumental functions of an insider’s view of the laboratory and its equipment can pose a threat to new discoveries. The circumstances that enabled Roentgen (an insider) to first notice these new rays are not clear, but Kuhn proposes that the occurrence of anomaly enables discovery and that Roentgen’s ‘recognition that nature has somehow violated the paradigm-induced expectations that govern normal science’ (1970: 52–3) was important. Kuhn emphasises that Roentgen valued the anomaly instead of ignoring it – a vital step in the process of discovery" (Liebenberg 2021: 114).
Jellyfish

A detail from an X-ray of my jaw