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Hi folks.
Some of you may remember my old "chaos pendulumn" animations. (Magnetic
pendulumn swinging above three magnets.)
In case you don't remember, see
http://www.btinternet.com/~andrewcoppin/Secret/Map1-Post.m1v
(MPEG-I, 640x480 pixels, 25 frames/second, ~1MB)
As you can see, there are three coloured points - these are the magnets.
The grey thing is actually a shiny silver ball - this is the magnetic
end of the "pendulumn". (Constraining it to a sphere was too hard, so
it's actually constrained to a plane instead.)
Notice how each magnet was a circular border drawn round it. Also notice
the silver "launch pad" the ball starts rolling from. As the ball enters
a circle of a particular colour, the launch pad changes to be that colour.
So what's this all about?
Well, I once saw a video tape where they showed you a graph of each
possible ball start point, and which magnet the ball comes to a halt
over. IT'S A FRACTAL. (Suprise!)
Anyway, I decided to go one better; I've made an animation! See:
http://www.btinternet.com/~andrewcoppin/Secret/Map2-S4-Post.m1v
(MPEG-I, 640x480 pixels, 25 frames/second, ~2.5MB)
I've also rendered another animation with a much heigher grid
resolution. It's wonderful to watch, but it's ~85MB. (Larger than my
webspace.) You can see the grid shape folding and warping as the balls
fly, and the colour patterns are quite lovely too.
Next plan is to leave out the balls completely, and render a *really*
high resolution grid! Will post the results if they are exciting enough...
Andrew @ home on Mozilla.
PS. Two things... First, the balls in the middle of the grid seem
strangely stationary... there is a "gravity" force which (you would
think) should accelerate them into the center - unless the magnets are
exactly conteracting it I suppose.
Magnet force = 1 / (distance to magnet)^2
Gravity force = distance from origin
So gravity is quite weak at the center I guess...
Also, not sure if BT's webserver is configured with the correct MIME
type for .m1v; certainly when I view it with Mozilla, it tries to
display it as text rather than PLAYING it... Please let me know if
anyone else has trouble! (I'm pretty sure I set my FTP client to BINARY
mode transfer...)
Note: I have no control over BT's webserver, sadly.
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This looks sort of like an attempt at modeling QCD- quantum
chromodynamics. This is a tripolar force that binds quarks together. Red
and blue make anti-green, green and anti-green are opposite polarity, red
and green and blue are neutral, etc.
Cheers!
Chip Shults
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Fernando G. del Cueto wrote:
> Nice. I hope we would have a way of looking at your 85meg file. Perhaps you
> could show us a frame?
I sure could show you a frame... (for example, the attached).
Doesn't really do justice to the complex way it *flows* when you watch
the animation though... perhaps I'll have a go at compressing it a tad...
The background pattern rapidly becomes too complex to see properly at
such a low resolution, and if there were any more balls flying around
you'd never see anything, so my next plan is to take out the balls and
redo with a higher grid resolution...
Thanks.
Andrew @ home on Mozilla.
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Attachments:
Download 'map2b0122.jpg' (238 KB)
Preview of image 'map2b0122.jpg'
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> Note: I have no control over BT's webserver, sadly.
Of course the real question is, do BT have any control over their
webserver... :P
The anim with the mosaic bakground is rather pretty, and confusing as
all hell until you read the post which explains what the mosaic
represents... :)
Jamie.
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>>Note: I have no control over BT's webserver, sadly.
>
> Of course the real question is, do BT have any control over their
> webserver... :P
HIGHLY debatable... :-S
> The anim with the mosaic bakground is rather pretty, and confusing as
> all hell until you read the post which explains what the mosaic
> represents... :)
Yeah... I was just gonna post it. But then I thought folks might not
immediately realise what's going on. It all seems to OBVIOUSE to YOU
when you build it! ;-)
It is kinda mesmerising tho, no? :-)
Andrew @ home on Mozilla.
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