New computer simulations suggest that the spiral arms of galaxies are not only a natural phenomenon but that they are a persistent one.

New computer simulations suggest that the spiral arms of galaxies are not only a natural phenomenon but that they are a persistent one.


Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit.

 
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs." --San Antonio Express-News




New computer simulations suggest that the spiral arms of galaxies are not only a natural phenomenon but that they are a persistent one.

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5 comments

  • Pzatchok

    Its sort of like pulling the plug in a drain.

    Except gravity and space do not exactly react the same as water tension and your sink.
    But I bet the math is close enough to explain a part of it.

  • Thomas

    Computer simulations? And not one word about how ‘unreliable’ they are, no ‘garbage in, garbage out’ cynicism, not a word about how a computer simulation could not possibly account for all the complexity of an entire galaxy… I wonder why that is… oh thats right, its physics, not climate science, there’s no fossil fuel involved. No ‘skepticism’ needed, and none mentioned.

  • Y’know, Thomas, I think right now you are simply trying to be annoying for no reason. I specifically mentioned that these are computer simulations to make sure everyone understood that the results should be looked at with a grain of salt.

  • Thomas

    Yeah, right. The article specifically mentioned they were computer simulations, which you merely reposted without comment.

  • Mike Thompson

    Has it ever been suggested that spiral arms of galaxies are unnatural phenomena?

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