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The Book of Evidence$
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Peter Achinstein

Print publication date: 2001

Print ISBN-13: 9780195143898

Published to Oxford Scholarship Online: November 2003

DOI: 10.1093/0195143892.001.0001

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Concepts of Evidence, or How the Electron Got Its Charge

Concepts of Evidence, or How the Electron Got Its Charge

(p.13) 2 Concepts of Evidence, or How the Electron Got Its Charge
The Book of Evidence

Peter Achinstein (Contributor Webpage)

Oxford University Press

Using as an example the results of Hertz's experiments on cathode rays in 1883, in which no electrical effects of these rays were observed, four concepts of evidence are introduced: ES (epistemic situation), subjective, potential, and veridical. It is argued that although all four types are used in science, veridical evidence, which is entirely objective and requires the truth of the hypothesis, is the most important for scientists.

Keywords:   cathode rays, epistemic‐situation evidence, evidence, Hertz, objective evidence, potential evidence, subjective evidence, veridical evidence

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