Experiment, Speculation and Law: Faraday's Analysis of Arago's Wheel

Abstract

Faraday's view of the mutual relation of speculative theories and laws of nature implies that there should be a procedure, leading from speculative considerations to a system of facts and laws in which theories do no longer play any role. In order to make out the degree in which Faraday's claims correspond to his practice, the way in which he gains an explanation of Arago's effect is analyzed. The thesis is proposed that he indeed has a procedure of leaving theories aside. It is intimately connected with certain methodological guidelines of his experimentation.