Carnival Of Space: Movie Edition

The one-year anniversary edition of the Carnival of Space is up at Why Homeschool? If only more homeschoolers were into space, Astronomy, and science in general, the United States would be a far superior place, I’m sure!

Thanks to Henry Cate for starting the Carnival and coming back to host it one year later! My post on a black hole getting kicked out of our galaxy is up there; check it out and find out what’s going on in outer space!

Comments

  1. #1 Yoyo
    May 2, 2008

    Ethan – this is off topic but I thought you might be interested in my comments on Louise’s article. I believe she has conflated the radius R of the 3-sphere with the r that appears in her form of the Einstein-Friedmann equations (most authors use a different letter like “a” to avoid confusion with the radial coordinate).

    I don’t run a blog but for the purposes of testing the latex I’ve temporarily put one up
    here with the comments repeated.

  2. #2 ethan
    May 2, 2008

    I am interested in what you wrote. The problem I have with what Louise is doing is that, in addition to the “non-conventionality” of what she’s doing (which runs contrary to a lot of things that cosmologists do as standard practice), the connections that are made to observable phenomena are unclear. To muddle things worse, there are obvious connections that aren’t made, presumably because they grossly disagree with observations. For instance, nuclear physics and the abundance of helium. For instance, the fact that either mass or charge or both or Energy has to change over time; it’s unclear which one. The set of questions that I asked on my post entited “Someone Hates Inflation” in the comments still stands, especially the ones about nucleosynthesis, as I’m pretty sure that rules her model out entirely.

  3. #3 Yoyo
    May 2, 2008

    Sorry, I munged up the link to the comment on Louise’s post.

    I wasn’t going to try raising the observational results, mainly because it’s not my area. Your comments have that pretty well covered anyway. It just seems to me that there are some mathematical statements there which are demonstrably incorrect.