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  1. 50 min video of Witten, Salam and Sciama

    by , 02-22-2019 at 07:54 PM
    Quote Originally Posted by not_Fritz_Argelander View Post
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  2. cosmic inflation: trick or treat?

    by , 02-17-2019 at 08:26 PM
    Quote Originally Posted by not_Fritz_Argelander View Post
    https://arxiv.org/abs/1902.05286?fbc...wWURN3LqIGs2aY

    Discovered almost forty years ago, inflation has become the leading paradigm for the early universe. Originally invented to avoid the fine-tuning puzzles of the standard model of cosmology, the so-called hot Big Bang phase, inflation has always been the subject of intense debates. In this article, after a brief review of the theoretical and observational status of inflation, we discuss
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  3. Layman in need of enlightenment

    by , 02-11-2019 at 06:04 PM
    Quote Originally Posted by not_Fritz_Argelander View Post
    Forum database crashed when I tried relying earlier but fortunately I had saved my reply

    Quote Originally Posted by Clouded Out View Post
    On one hand, I think I have a good layman's understanding of cosmology and particle physics but there's loads I don't understand in this forum section. I was able to get most of the matter-antimatter symmetry issue but am a bit confused by some of the quark issues.

    As I get it, there are 6 types of quark: up, down, top, bottom, strange, charm.

    As I understand
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  4. a problem article: axions as new ideas for DM? i'll need to take a deeper look

    by , 02-08-2019 at 02:11 AM
    Quote Originally Posted by not_Fritz_Argelander View Post
    Sometimes an article that I don't like very much accidentally stimulates interesting ideas. This article led to such a serendipitous idea.

    I've been interested in monopoles of the Dirac type for a long time as an approach to the fine tuning problem as mentioned. So it seemed to me that it would be interesting if say in the Kaluza Klein Theory (a geometric theory of both gravity and electrodynamics that lives in a five dimensional space time, one dimension rolled up into loops) there
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  5. The Rosette nebula - a rose like none other

    by , 01-28-2019 at 12:02 PM
    Quote Originally Posted by CamelHat View Post
    Really good image John! Let me get this straight: you used only 35 minutes integration time, with what sensor? The Atik383+ OSC? I need to get me one of those...
    Here is a screen shot of a lightly stretched original frame. No preprocessing steps were taken on this image, and the light pollution is still evident. I performed an adaptive bin within Nebulosity and DDP stretch with some curve manipulation. No NR applied to this frame. During preprocessing of the posted image, ...
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