Cargo cult science comprises practices that have the semblance of being scientific, but do not in fact follow the scientific method. The term was first used by physicist Richard Feynman during his 1974 commencement address at the California Institute of Technology. Cargo cults—a religious practice that has appeared in many traditional tribal societies in the wake of interaction with technologically advanced cultures—focus on obtaining the material wealth (the "cargo") of the advanced culture through magical means, by building mock aircraft landing strips and the like.