Michio Kaku discusses the Doppler effect and how we can measure the rate at which the universe is expanding using it. Kaku also talks about the potential 'freeze death' the universe might experience in the future, and what we might be able to do to avoid it.
Channels: Interviews Physics (General) Astrophysics
Tags: Big Think Michio Kaku Doppler effect multiverse
Uploaded by: layne.ransom.5 ( Send Message ) on 02-12-2012.
Duration: 7m 48s