ConwayLife.com

Posted: **March 13th, 2012, 8:24 pm**

Hi, I'm a long-time lurker who has "played" with CGOL for about a year. Recently I have been particularly interested in flyby reactions, and below is a "chain" reaction. I just wondered whether I have inadvertently discovered any new mechanisms.

*Disclaimer - I developed this independently and discovered all these mechanisms on my own. However, I do not take credit as being the first one to find these mechanisms. Any or all of these may have been discovered.*

a) P48 Schick engine backward rake
b) Backward glider - pre-traffic light - forward glider
c) forward glider - mess - 2 forward gliders
*unknown puffer engine here - cannot find on Lifewiki
d) 2 forward gliders - 1 forward glider
e) forward glider - pre-traffic light - forward glider
f) forward glider - mess - backward glider
*Coe ship used
g) backward glider - loaf - forward glider
h) forward glider - B-heptonimo - pre-traffic light - forward glider
i) glider - 0

Code: Select all

x = 451, y = 185, rule = B3/S23
b5o$o4bo$5bo$o3bo$2bo54$101b5o13b2o$100bo4bo10b3ob2o$105bo10b5o5bo2bo$
100bo3bo12b3o10bo$102bo23bo3bo$127b4o14b6o$144bo5bo$150bo9bo2bo$144bo
4bo14bo$146b2o12bo3bo$72b6o83b4o$71bo5bo75bo$55bo21bo3b2o69bob2o$53bo
3bo13bo4bo3b4o66bo10b3o$58bo14b2o5b2ob2o65bo9b5o$53bo4bo23b2o66bo2bo5b
4ob2o$54b5o93bo3b2o5b2o$109b4o$108b6o$108b4ob2o$112b2o21b2o$132b3ob2o$
132b5o$133b3o3$147b3o$146b5o$146b3ob2o$149b2o2$55b5o$54bo4bo33b2o81b4o
$59bo29b4ob2o79b6o171b5o$54bo3bo30b6o80b4ob2o4bo164bo4bo$56bo33b4o85b
2o3bo3bo167bo13b2o$189bo161bo3bo13b4o$184bo4bo163bo15b2ob2o$185b5o181b
2o9$166b3o$165b5o194b6o$165b3ob2o192bo5bo4b3o$168b2o199bo3b5o$363bo4bo
4b3ob2o$365b2o9b2o5$447b4o$446bo3bo$450bo$442b2o2bo2bo$442b3o$442b2o2b
o2bo$450bo$446bo3bo$427b2o18b4o$425bo4bo$299bo85b2o44bo$297bo3bo81bo4b
o36bo5bo6b6o$302bo86bo36b6o5bo5bo$297bo4bo80bo5bo53bo$298b5o81b6o47bo
4bo$278b5o156b2o$277bo4bo58b4o$282bo57bo3bo$277bo3bo62bo$279bo60bo2bo$
339bo$337bo5bo$344bo$337bo6bo$338b7o2$326bo$329b3o7bo$329b3ob4o2b2o$
326bo8bo3bo$335bo2bo5b2o$342b2ob2o$342b4o$343b2o32$267b5o$266bo4bo$
271bo$266bo3bo$268bo!

Posted: **March 14th, 2012, 1:40 pm**

Hi.

I don't recognise these mechansims from any pattern i've seen so you may have discovered them. These do have a potential to be used in a larger mechanism or to what I've noticed if you remove the last MWSS it creates a p48 rake (predessesor). Frankly though, I would be suprised if these weren't discovered. Still these are nice reactions to find even under ones own power.

Posted: **March 14th, 2012, 5:19 pm**

Another reaction

This is probably redundant, but I've been tinkering with the B-heptonimo possibilites, and found this 4-spaceship glider turner (forward - back). I just liked how the glider is formed very early on (is it the normal first emitted glider of a Herschel?), and the debris vanishes to a block, even removing the original block produced by the B-heptonimo.

forward glider - B - Herschel+block - backward glider+mess+block - backward glider+block - backward glider

Code: Select all

x = 135, y = 57, rule = B3/S23
85b6o$84bo5bo$90bo$84bo4bo$86b2o2$2bo81b2o$o3bo80b2o$5bo78bo$o4bo$b5o
8$96b2o$97b2o$96bo2$9b2o$7bo4bo$13bo$7bo5bo$8b6o3$63b2o$59b4ob2o42b2o$
59b6o44b2o$60b4o44bo10$120b2o$121b2o$120bo10$132b2o$133b2o$132bo!

Posted: **March 14th, 2012, 9:19 pm**

Jackk wrote:I just wondered whether I have inadvertently discovered any new mechanisms.

(a) p48 back rake, using a Schick engine
This is larger than known technology; see the c2-extended/c2-0048.lif file in my jslife collection.
But the glider release position (at the side) is good, and maybe it could be optimized.

(b) B(ackward glider) -> F(orward glider), same side, using 3 *WSS
Huh. This should be jslife:velocity-c2/turners-c2-p4-b.lif, but seems to be missing. The mechanism is known, though, and it appears in jslife:misc/flyby-toglider.lif.

(c) F -> 2F, opposite side, using p8 spaceship + 2 *WSS
(d) 2F -> F using MWSS
Cute, though very specialized.
The p8 spaceship is known; see jslife:c2-extended/c2-0008-ss.lif.

(e) F -> F, opposite side, using 3 *WSS
This is in jslife:velocity-c2/turners-c2-p4-f.lif (in an optimized form).

(f) F -> B, opposite side, using Coe ship + 3 *WSS
(h) F -> F, same side, using 5 *WSS
These are probably too expensive (too many *WSSs) to be of much general interest.

(g.1) B -> loaf, using LWSS

(g.2) loaf -> F, using 3 *WSS
This is in jslife:misc/flyby-toglider.lif, in a slightly different form.
Efficient "flyby" reactions, where a stationary object is turned into another object, are of some interest (to me at least). It would be nice to have a bigger collection of them.

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