Historians, sociologists, philosophers, and, sometimes, scientists themselves have begun to ask fundamental questions about how the institution of science is structured and how it knows what it knows. David Cayley talks to some of the leading lights of this new field of study.
Tonight's guest: Sajay Samuel
When Copernicus showed that the earth revolves around the sun, Galileo said that he had made "reason conquer sense." But without confidence in our senses, Sajay Samuel says, we have no basis on which to question science. He argues for a revival of common sense.

Read more about Parts 1-24 of How to Think About Science