We are accustomed to thinking of science and its findings as universal. After all, one atom of carbon plus two of oxygen yields carbon dioxide in Amazonia as well as in Alaska; a scientist in Bombay can use the same materials and techniques to challenge the work of a scientist in New York; and of course the laws of gravity apply worldwide. Why, then, should the spaces where science is done matter at all? David N. Livingstone here puts that question...