ConwayLife.com

Question for you: How much of Devore-rep did you actually make? Did you have the ruleset and machine and you just figured out the program? Did you have the ruleset, but had to create the machine from scratch? Even now, knowing the whole machine and program top to bottom, it boggles my mind that ...

Hi Elliott, this is fantastic work. It's great to see a Devore-style machine replicate so quickly.

Thanks for the extensive documentation on the changes you made to the machine and the script and the rules.

We should definitely include this pattern in Golly.

Tim

FCC is the 'face-centred cubic' lattice, also known as the Rhombic Dodecahedral Honeycomb

Brian D. Eubanks recently (Dec 2018) posted some results of a rule on the FCC. He calls it '3333' and it is very simple:

each cell is alive in the next generation if (and only if) it has three live ...

Cute!

Related: This turmite makes a period 68 glider:

Hi fluffykitty,

Very nice. We should definitely add these to the list. I'm glad that someone is finding that page interesting, it's a bit of an obscure hobby!

Tim

Yes, the number of live cells never changes, which does limit the possible behaviors. There can be no replicator in this rule, for example, without some mechanism for incorporating live cells from elsewhere. Actually, that's kind of nice to think about! I wonder if that is possible in this rule?

Check out this Margolus rule with remarkable Life-like properties:
http://dmishin.blogspot.co.uk/2013/11/the-single-rotation-rule-remarkably.html

https://lh5.googleusercontent.com/-mTAJ1a9hwXQ/UmzYqTP0NRI/AAAAAAAAE6M/fFMvSHjffjQ/w200-h150-no/animation.gif

Margolus blocks that contain a single ...

It's kind of fun to use activity in Life as the seed for a diffusion process:

amNoBG2.png
Video: http://youtu.be/3RKEqVg3Pxs
As a Ready file: LifeBlur.vti

Here's the same frame shown as Life:

7IeMVQi.png

Viewing it with diffusion doesn't change the dynamics of Life but it's kind of ...

Would it be possible to make a rule file for Golly for the 2D version? It's not too important, but it would be nice. Thanks.

Hi Sphenocorona,

No, I'm afraid not. The rule uses a 7x7 neighborhood (radius-3 Moore), which Golly doesn't currently support. It could be emulated as a radius-1 Moore ...

New paper by Andrew Adamatzky on ArXiv:

http://arxiv.org/abs/1306.0253

Game of Life on Phyllosilicates: Gliders, Oscillators and Still Life

"A phyllosilicate is a sheet of silicate tetrahedra bound by basal oxygens. A phyllosilicate automaton is a regular network of finite state machines ...

If 3D strands move in an increasingly-good approximation to a circle, is it also true that the average location of the cells in the vibrating strings in the 2D version moves in a sine wave over time? Could we prove that, by modelling the movement of each cell?

Edit: I've been exploring the 2D ...

Here's the 3D version:

https://lh6.googleusercontent.com/-v7WyirQDW0E/UWNAVxdfNtI/AAAAAAAAHQM/TNmIVo3rHK4/s800/salt3d_3.gif
salt3D_circular330.vti (download and open in Ready)

This is an 8-cell strand, moving in an approximately circular path (if you trace the average location over time) in 330 ...

Here's the 2D Salt CA running in Ready. I implemented it as a 4-state CA with a radius-3 Moore neighborhood.

https://lh5.googleusercontent.com/-BTiQ8UH2OuA/UV7GCFqOrHI/AAAAAAAAHPQ/J4rwheV__C8/s800/salt2d.gif

To run this for yourself, here's the Ready file with the implementation written in ...

You might find "Circular Motion of Strings in Cellular Automata and Other Suprises" interesting.
It can be found at digitalphilosophy.org
Also, you can see, run and discover new configurations of Salt CA at busyboxes.org

Hello. Are you Ed Fredkin?

I've been meaning to play with Salt ...

Mark Jeronimus and Ed Pegg, Jr. and Georgi Gochev are doing a great job of keeping the wiki updated with the latest results:

http://code.google.com/p/ruletablerepository/wiki/EdPeggsBusyBeaverTurmiteChallenge
http://code.google.com/p/ruletablerepository/wiki/UnresolvedTurmites2States2Colors ...

Georgi Gochev does it again! He has found a turmite that lasts 7.735 billion time steps before becoming predictable:

{{{1,8,1},{0,2,0}},{{1,8,0},{0,1,0}}}

Georgi Gochev is the current champion, with this amazing turmite that lasts 240 million steps:



{{{1,1,1},{0,8,1}},{{1,8,1},{0,1,0}}}

Update:

We've found a new record holder. The turmite {{{1,4,1},{1,1,0}},{{1,1,0},{0,2,1}}} runs for 18.22 million steps before making a highway:

Ed Pegg, Jr., who runs http://www.mathpuzzle.com, has a challenge for us.

Turmites are little creatures that run around the grid. Langton's Ant is a simple turmite.
http://en.wikipedia.org/wiki/Turmite
http://en.wikipedia.org/wiki/Langtons_ant

Golly can run turmites. Use Scripts/Python/Rule ...

The Ready team is excited to announce that Ready 0.5 is now released! It allows you to run cellular automata and reaction-diffusion systems on arbitrary polygonal and polyhedral meshes. Runs on Windows, MacOS and Linux, using OpenCL. Includes the SmoothLifeL rule that went viral in October ...

What line of thought led you to ask it?

I was chatting to Stephan Rafler about the continuum between GoL and his SmoothLife , via Larger-than-Life (the Bugs rule) and RealLife. There are several other continuous systems that include 'gliders' (moving solitons), such as Robert Munafo's U-Skate ...

Do we know of any spaceships that can sustain damage (adding or deleting one or two cells) and continue? GoL patterns are usually so brittle but there are examples of self-repair:

A block will reform:

oo
oo

if damaged like this:

o.
oo

So obviously a spaceship that makes blocks might be robust ...

Historically, the one big piece of famous hardware for this is the Connection Machine. There's a great article about Richard Feynman's involvement here:
http://longnow.org/essays/richard-feynman-connection-machine/

Stephen Wolfram got involved because of his interest in lattice gases, which you ...

In Blender:
https://lh6.googleusercontent.com/-K7Q1ejHiQgA/UCT7OLVNHgI/AAAAAAAAF9A/707GRrveDE4/s400/bunny_in_blender.png

Using hints from you and from this page , here's a way to get mesh colors from Ready into Blender:

Load the .vtu into ParaView, only importing one chemical.
Apply the Cell ...

Out of curiosity I had a go at extruding the surface based on the RD values:

https://lh6.googleusercontent.com/-5rR_q7ywcWo/UB_XDwYDn1I/AAAAAAAAF6Q/lNPfQSdOicw/s400/bumpy_bunny.png

To achieve this I first used MeshLab to Poisson-reconstruct the surface (the Stanford Bunny is non-manifold in ...