40 min listen
Question Barn 6
ratings:
Length:
32 minutes
Released:
Feb 1, 2015
Format:
Podcast episode
Description
Dr. Katie Mack and I talk about big bang stuff.
the question is from bob:
"Hello again Ben. I've found and listened to the QB episodes. Thanks for the help with locating them.
Since you seem to have ready access to a cosmologist, I'd like to offer for QB a trio of related cosmological questions that have bugged me for some time.
1. How do we know that all the matter in the universe came from the big bang?
2. How do we know that the big bang did not expand into an existing precursor universe? (It seems plausible to me that this may be the case but we have no way to know because the hyperinflation immediately after the big bang and accelerating expansion due to dark energy will permanently keep us outside of the light cone of any event in this hypothetical precursor universe. I'm not fond of unfalsifiable theories...)"
the question is from bob:
"Hello again Ben. I've found and listened to the QB episodes. Thanks for the help with locating them.
Since you seem to have ready access to a cosmologist, I'd like to offer for QB a trio of related cosmological questions that have bugged me for some time.
1. How do we know that all the matter in the universe came from the big bang?
2. How do we know that the big bang did not expand into an existing precursor universe? (It seems plausible to me that this may be the case but we have no way to know because the hyperinflation immediately after the big bang and accelerating expansion due to dark energy will permanently keep us outside of the light cone of any event in this hypothetical precursor universe. I'm not fond of unfalsifiable theories...)"
Released:
Feb 1, 2015
Format:
Podcast episode
Titles in the series (96)
Episode 11: Of Matters Dark...: Hello everyone. Allow me to introduce my old friend Ken Clark, and my new friend Amanda Bauer. He works on Ice Cube and she works in australia. But he's not a bar tender, and she is not a kangarooist. rather, they are my NEWEST TITANIUM PHYSICISTS!... by The Titanium Physicists Podcast