Primers on detecting primordial gravity waves and cosmic inflation

Zeitgeist 1 Minute

First, Minute Physics takes a shot at explaining what the BICEP2 team actually found and how it relates to gravitational waves.  I think I’m going to have to watch this a second time to pick up everything.

And Ethan Siegel has an in-depth discussion of cosmic inflation at his Starts With A Bang site.

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11 thoughts on “Primers on detecting primordial gravity waves and cosmic inflation”

      1. Its been an area of interest since I looked into the big bang… always had a huge problem with there being a big bang for many reasons. One of the problems is this idea that the expansion seems to have begun as some form of substance that didn’t explode like any explosion would… it wasn’t described haphazardly enough for me to believe that everything formed into a fairly uniform expansion of matter forming in those first seconds… I am lately beginning to understand that maybe it did — its always interesting.

        Hope you have a terrific weekend Mike.

        ~ Eric.

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        1. I think one of the things that isn’t emphasized enough is that while there is plenty of evidence for the universe expanding out of a very hot dense state, no one really knows what caused it in the first place. There are lots of speculative theories, but nothing evident, at least not yet. So, when people ask, “how can everything just bang into existence?”, they should realize that scientists are asking the same question.

          You have a great weekend too Eric!

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          1. I agree and I do also like to point out that the big bang part of our beginning is very much a theory of the beginning.

            Thanks Mike.

            I just got word that I am being considered for a position. Its been a big struggle for me to visualize myself working at any of the jobs that have been available lately. What I learned today is giving me some balance – a possible solution. I have a few years yet that I need to work.

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