PIRSA:09100006

Video URL

https://pirsa.org/09100006

Lecture Series presented by KPMG - The Origin of the Universe and the Arrow of Time

Carroll, S. (2009). Lecture Series presented by KPMG - The Origin of the Universe and the Arrow of Time . Perimeter Institute for Theoretical Physics. https://pirsa.org/09100006

Carroll, Sean. Lecture Series presented by KPMG - The Origin of the Universe and the Arrow of Time . Perimeter Institute for Theoretical Physics, Oct. 18, 2009, https://pirsa.org/09100006 

          @misc{ scivideos_PIRSA:09100006,
            doi = {},
            url = {https://pirsa.org/09100006},
            author = {Carroll, Sean},
            keywords = {Cosmology},
            language = {en},
            title = {Lecture Series presented by KPMG - The Origin of the Universe and the Arrow of Time },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {oct},
            note = {PIRSA:09100006 see, \url{https://scivideos.org/pirsa/09100006}}
          }

Sean Carroll California Institute of Technology (Caltech) - Division of Physics Mathematics & Astronomy

Talk numberPIRSA:09100006
Source RepositoryPIRSA
Collection
Subject

Abstract

One of the most obvious facts about the universe is that the past is different from the future. We can turn an egg into an omelet, but can't turn an omelet into an egg. Physicists have codified this difference into the Second Law of Thermodynamics: the entropy of a closed system always increases with time. But why? The ultimate explanation is to be found in cosmology: special conditions in the early universe are responsible for the arrow of time. This talk will be about the nature of time, the origin of entropy, and how what happened before the Big Bang may be responsible for the arrow of time we observe today.