32 min listen
109: Something From Nothing?
Fromsyzygy
ratings:
Length:
54 minutes
Released:
Jun 25, 2023
Format:
Podcast episode
Description
Every so often, a Syzygy listener writes in with a cracking question that sends Emily and Chris off spelunking down the deep, deep sinkholes of astronomy and cosmology. This time, listener Eve asked an absolute cracker, to wit: Just how much energy is there in the universe right now? A simple question at first glance. At second glance (and every glance thereafter) it's not simple at all. We need to first consider, what is energy? What is the universe? And even, what is "now"? It's very confusing.Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypodSyzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.On the web: syzygy.fm | Twitter: @syzygypodThings we talk about in this episode:• Feynman’s discussion of energy• Dark matter• Dark energy• The observable universe• Critical energy density• Is the energy in the universe zero?• The Big Bang Singularity• The fates of the universe
Released:
Jun 25, 2023
Format:
Podcast episode
Titles in the series (100)
Episode 05: Diamonds from Space! by syzygy