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  1. getting past black hole and big bang "singularities"

    by , 12-22-2018 at 07:12 PM
    Quote Originally Posted by not_Fritz_Argelander View Post
    PS It might be interesting to some to add that although ECSK is singularity free without considering quantum effects, it still has event horizons! Its black holes have no singularities! Instead every BH makes a wormhole which (unlike in GR) is stable against collapse.

    http://math.newhaven.edu/poplawski/NIST2011.pdf
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  2. M31, the Great Andromeda galaxy (2 hr, 45min)

    by , 12-19-2018 at 02:19 PM
    Thanks. I will take a look at a version with less contrast. I tried not to clip the background directly though the whole process. Some tools, such as some in StarTools can knock down the background glow too much.

    I like your version too.

    Quote Originally Posted by mbenjamin View Post
    John, I'd like to see this image with the background not clipped so much. Take a look at mine that I just posted for comparision.
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  3. Any writers on here?

    by , 12-19-2018 at 12:07 PM
    Quote Originally Posted by helicon64 View Post
    I enjoy writing including astronomy and have a blog that I post to regularly (in the financial field). I wrote a long dissertation (376 pages) for my doctoral degree back in 2000. I have yet to write any other books, but hope to start soon. In the meantime I participate in this and other forums reflecting my interests. I would like to write an introductory astronomy book as well, targeted at beginners, but I feel like I haven't quite honed my skills enough as an observer to be a real authority.
    ...
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  4. A visit to the unique 9 inch Unitron Polarex

    by , 11-25-2018 at 07:08 PM
    Quote Originally Posted by John Baars View Post
    Last friday 03-23-2018 I had the opportunity to visit the one and only 9 inch Unitron Polarex telescope in the world.

    Thanks to Dave Komar, who pointed me out the whereabouts of this giant telescope (several miles from my hometown!) , I was able to contact the owner. The owner tells us via Dave about the amazing rescue from the scrapyard and demolition on his site: Polarex – Unitron Model 900 – Unitron History Project

    Quite a remarkable and readable story. The owner
    ...
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  5. A visit to the unique 9 inch Unitron Polarex

    by , 11-25-2018 at 07:08 PM
    Quote Originally Posted by John Baars View Post
    Last friday 03-23-2018 I had the opportunity to visit the one and only 9 inch Unitron Polarex telescope in the world.

    Thanks to Dave Komar, who pointed me out the whereabouts of this giant telescope (several miles from my hometown!) , I was able to contact the owner. The owner tells us via Dave about the amazing rescue from the scrapyard and demolition on his site: Polarex – Unitron Model 900 – Unitron History Project

    Quite a remarkable and readable story. The owner
    ...
    Categories
    Uncategorized
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