Abstract

The question of how scientific hypotheses and theories should be evaluated in light of evidence has been a central question in philosophy of science. Far less attention has been given to the questions of how evidence is developed and is itself evaluated. From this neglect, one might assume that the processes by which scientists develop and evaluate evidence are unproblematic. An examination of the actual practice of experimental scientists, however, reveals that they are far from unproblematic. Much of the evidence used to assess scientific theories is gathered with elaborate instruments. At a given time many instruments used in a particular science are noncontroversial. The techniques for using them are agreed upon so that, in a fairly routine way, scientists are able to generate evidence to settle empirical or theoretical disputes. To capture the fact that such instruments and techniques are not questioned, Latour (1987) refers to them as black boxes.