[seqfan] Re: floretion video / A108618

[Antti Karttunen]

On Thu, Nov 12, 2009 at 9:21 AM, <seqfan-request at list.seqfan.eu> wrote:

>
>
> Message: 8
> Date: Wed, 11 Nov 2009 23:19:20 -0500
> From: Alonso Del Arte <alonso.delarte at gmail.com>
> Subject: [seqfan] Re: floretion video / A108618
> To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
> Message-ID:
>        <3cce05d60911112019v73bf528bv909e0e14b3573bbf at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Well, Creighton, more people will watch it that way. Only three people
> showed up to the screening.


Well, maybe you don't have students that are enlightened/freak enough?
I like Creighton's video a lot, especially the dramatic music together
with a deep dive into the weirdness of all that platonic world.
BTW, How was that "jellyfish"-part made, at about the middle of video?

And I liked also your Ulam primes spiral video. Please keep on doing these,
both of you!

Moreover, is there a more high-res version of the floretion video than
what is at Youtube: http://www.youtube.com/watch?v=GKL4Lkw-rU0
???

And what would be the best tool for doing a video with combinatorial trees
growing, branch by branch? Or various manifestations of Catalan structures
morphing into
each other?


Yours,

Antti



> It was a worse attendance than my least-attended
> string quartet concert, and that was in January at 11 AM with snow and wind
> outside. The fault lies with me. I'm so stressed out over my failure to get
> a corporate sponsor for the Tiger Stadium memorial concert CD that I barely
> advertised this screening. At least the three people in Audience liked your
> film, better in fact than the Mandelbrot zooms (which one of them had
> already seen before anyway).
>
> Still, I am very grateful that you gave me this opportunity to show it.
>
> Al
>
> On Wed, Nov 11, 2009 at 4:36 AM, Creighton Kenneth Dement <
> creighton.k.dement at mail.uni-oldenburg.de> wrote:
>
> > Dear Seqfans,
> >
> > I uploaded a copy of the video here
> > http://www.youtube.com/watch?v=GKL4Lkw-rU0
> >
> > I wrote a python script to allow users to see the 2D/3D curves for
> > themselves using the (excellent) freeware software Blender. See (or ask
> me
> > and I will try to help)
> >
> >
> http://wiki.blender.org/index.php/Extensions:Py/Scripts/Manual/Misc/Import_Floretions
> >
> > I would also like to take the opportunity to thank Benoit Jubin. I'm no
> > expert on Group Theory, but my jaw dropped to the floor when he wrote
> that
> > he'd found a new way to formulate the "Gerald's diamonds" sequence
> A108618
> > (see comment there). That sequence has always been one of my favorites
> > because:
> >
> > - it only references quaternions (the algebra of the quaternions is
> > contained in the floretion algebra)
> >
> > - it is very simple and trying to make it simpler will probably result in
> > a sequence which satisfies a linear recurrence relation (likely 4th order
> > or less).
> >
> > - it is the basic idea behind all the other algorithms which generate the
> > "life-like" pictures, music etc.
> >
> >
> > Sincerely,
> > Creighton
> >
> >