Film: "Distinction of past and future "(Feynman), sound, 46 min.

Film: The Distinction of Past and Future. (Feynman) Film Title: The Distinction of Past and Future. Level: Upper elementary-Adult. Length: 46 minutes. Black and white, with sound. Description: This lecture discusses the obvious irreversible phenomena of nature, but points out that there is no reason why the physical laws should not be valid if the process were reversed. Numerous models are used to describe the processes of nature, and analogies of temperature and entropy are developed. Professor Feynman also describes the interconnections between various scientific and philosophic ideas. IRREVERSIBILITY AND FLUCTUATIONS.