ConwayLife.com

Different color:

x = 112, y = 83, rule = LifeHistory
7.A$7.3A$.A8.A$.3A5.2A$4.A4.5B$3.2A6.6B$3.4B2.8B3.BA$5.B2A7B2A3BA.A$
5.2A8B2A4BA$6.BA11B.B$2A2.B2.4BABA4B$A2.2A5BA5B40.2A$.2ABA5BA5B36.2A.
A.A6.2A$4.5BA5BA27.A7.A.A.A8.A$.3A.4BAB2A3BA4.A20.A.A5.A2.A.BA4.BA.A
25.2A$.A2.A2.4BA4BA3.A.A19.BA2B5.2A ...

Weird Herschel factory

Complete with some weird use cases:

x = 359, y = 163, rule = LifeHistory
233.2A48.2A$233.A47.2B2AB8.2A.A$230.BA.A47.4B10.A.3A$230.B2A48.5B5.AB
A.A4.A$228.3B5.2A43.7B2.A2BA.A3.A.A$227.4B4.B2AB27.2A2.A11.6B3.A2.A3.
A2.A$222.3B.7B3.3B20.2A.2A3.4A11.2BA4B3.2B4.A.A$222.12B3.B20 ...

Smaller:

x = 123, y = 93, rule = LifeHistory
104.2A$100.2A.A.A6.2A$91.A7.A.A.A8.A$90.A.A5.A2.A.BA4.BA.A$3BA86.BA2B
5.2A.B2AB3.B2A$.3BA86.2B8.4B2.3B$2.3AB85.3B7.4B.4B$3.4B84.BA2B5.7BAB
5.2A$4.4B81.2B3AB3.8B3A5.A$5.4B80.B5A10B4AB.BA.A$6.4B79.A5BA8BA5B.B2A
$7.4B77.4BA2B2A6B2A2BA4B$8.4B76 ...

No joke:
The Speed Tunnel can be used as a switch at p57


x = 138, y = 134, rule = LifeHistory
27.2A$25.2B2AB8.2A.A$25.4B10.A.3A14.2A$25.5B5.2AB.A4.A12.A.A$25.7B2.B
3A.A3.A.A5.2A4.A$10.2A2.A11.6B3.A2.A3.A2.A3.A2.A2.2A.4A$3.2A.2A3.4A
11.7B3.BA4.A.A4.2A.A.A.A.A2.A$2.B.A.A2.A14.8B4.2B2.ABA.2A6.A ...

Slightly less ugly reduction of gun_29:

x = 98, y = 94, rule = LifeHistory
48.A$47.A.A$47.A2.A$43.2A.2A.2A36.A$28.2A13.2A.A2.A36.A.A$29.A9.2A4.B
.BA2.A34.A2.A$17.A11.A.AB4.2B2AB2.3B2.3A30.2A.2A.2A$16.A.A11.2AB4.4B
3.2B3A18.2A13.2A.A2.A$16.BA2B12.3B2.6B.BAB2.A18.A9.2A4.B.BA2.A$17.2B
13.8BA2B.BAB2A ...

@iNoMed: This also makes a (gliderful) p57 LWSSgun:

x = 88, y = 59, rule = LifeHistory
56.2A$43.A.2A8.B2A2B$41.3A.A10.4B$40.A4.A.B2A5.5B$39.A.A3.A.3AB2.7B$
39.A2.A3.A2.A3.6B$8.2A.2A2.2A23.A.A4.AB3.7B$4.2A.A.A.A2.A2.A21.2A.ABA
2.2B4.8B$3.A2.2A.B2.3A.2A20.A2.A.2B2.2A4.8B$2.A.A3.B3A4.A21.4A.A.A3B
4 ...

Ugly reduction of gun_29:

x = 100, y = 96, rule = LifeHistory
22.A$20.3A4.2A$19.A3.2A2.A2.2A$20.3A2.A.A.2A.A$22.A.A.A.A4.A$22.2BA.A
.B.3A$23.A2BAB.2A$17.4B.B.2A3B$16.12B.2A$14.10B5.2A$13.13B16.A$12.14B
.B14.3A$7.AB3.3B2A10B2A5.A10.A$6.A.A6B2A3B2A5B2A2.A2.3A7.2A$7.A8BA2BA
8B3.3A3.A6.6B$8.B.7B2A9B6 ...

Smaller gun_41, based on the new p82:

x = 88, y = 87, rule = LifeHistory
19.2BA9.2A16.2A$16.5BAB9.A17.A12.2A$16.5BAB8.A18.A.AB9.2A$15.7B9.2A
18.2AB.B.3B$8.A5.7B11.B20.7B3.4A$7.A.A3.9B10.3B18.7B2.A3.A$7.BA13B9.
6B16.2BA4B.2BAB$8.16B3.B2.10B11.2B2ABA4BABAB$7.34B3.2B2.3B2ABAB2A3B2A
2B$6 ...

HWSS to glider:

Using the 3hd reflector from Tawal's post gives a repeat time of 398:

x = 234, y = 58, rule = LifeHistory
202.2A$202.A$184.2A13.BA.A$183.B2A2B11.B2A$184.4B6.6B$183.5B4.7B5.2B$
181.7B2.11B2.6B$176.3B2.2A4B3.20B$169.2B4.6B2A5B.11B2A10B4.B$166.6B.B
.13B.11B2A12B.B2A$166.50B2A$165.50B ...

Slight reduction to gun_18 (finally p36)

x = 82, y = 80, rule = LifeHistory
34.A2.2B27.2A$32.A3B4A3.2A11.A8.A2.A.2A.A$31.BA3BA.2B3.A.A9.ABA5.2B.A
.A.A.2A$21.2A4.A4.A.B4.A5.A2.A6.2B6.B2A.A2.A$21.A4.A.A4.2BA3.BA3B2A.A
.A6.BA5.B3A3.A.2A$23.A2.A2.A3.2A4.2BA2B.B.A.A6.2A.B4.2AB4.A.A$19.4A.A
.2A.A9.BA4B2 ...

Re: gun_18

Slight reduction (using ElijahKen's pattern):

x = 98, y = 75, rule = LifeHistory
36.A$24.A5.A5.3A7.2A$23.A.A3.A.A7.A5.B2AB$22.A2.A3.A.A6.2A.2B.4B$22.A
.A.2A.A.2AB4.9B$23.2A.A.2A3.AB3.10B7.2A$25.2B3.B2A2B2.6B2A4B6.A$23.2A
.B3A.2BA2B.12B3.BA.A$23.A.2B.A2B.A14B2A2B.B2A$20.2A.A.2BAB ...

Smaller gun_18

Note that it's not using the newest version of the p54 gun, which has a smaller bounding box but is nevertheless bulkier (is there a record of previous gun versions that are no longer in Catagolue?). Further reductions should be possible: the inserter works at p36 (using the aptly ...

Herschel-to-B conduit based on the beehive-to-block reaction

x = 80, y = 60, rule = LifeHistory
70.2A$69.B2AB$11.2A3.2A52.2A$11.A.A.A2.A3.2A44.B2A$13.A.2A.A4.A44.4A$
12.AB.2B.A.3A43.BA4B$12.A3B3A.A45.2A4B$13.4BA2B46.2BAB$11.A2B.B.3B47.
3B$11.AB3.2B48.2B$12.A2.B2AB.2B43.B2AB.2B$9.3A4.2A3B2A43 ...

p37 bouncer with speed tunnel sparker


x = 104, y = 88, rule = LifeHistory
36.A$36.3A14.2A$39.A13.A$38.2A4.B5.BA.A$38.8B4.B2A$40.7B.3B$39.6B3ABA
B$38.6BA3BABA51.BA$38.7B4ABAB49.2AB$28.2A10.12B48.2B2A$29.A7.3B2.A8B
48.4B$29.A.AB3.B2AB4ABA2B2.B2A45.4B$30.2AB2.2BAB4AB2AB3.BA.A43.4B$32.
8BA2.3B7.A42 ...

132p37 as color-changing reflector

x = 70, y = 47, rule = LifeHistory
18.A$18.3A$21.A3.3B$20.2A.7B$20.6BA3B.2B36.B$22.2B2AB2A3B2A34.2B$20.
3B5A2B.B2A33.A2B$19.4B3A5B.B33.BABA$19.11B35.2B2A$15.2B2A10B35.4B$15.
BA2BA10B2AB30.4B$14.2BAB2A9BA2BAB28.4B$12.4BA3B.2A10BAB26.4B$5.2A4.B
4A4B2A11BAB25.4B$4 ...

Pseudo p35 gun:

x = 115, y = 59, rule = LifeHistory
81.B3.B$23.2B55.7B$22.4B51.2B.B2A4B.2B$21.5B50.2A3BABA6BA$21.2B3AB49.
2AB.BA2BA2B.B2A$18.5B3AB5.2A43.B.3BA3BAB.B$7.2A9.4BA3BAB2.BA.AB39.A5.
3B.ABA$8.A8.2BA3B2A2BA3B2A2B16.2A3.2A14.3A34.A$8.A.AB4.2BAB2ABA3B2A4B
.B2A13.A2.A.A2.A12.A8.3B.ABA20.3A$9 ...

High-clearance p7 inserter


x = 94, y = 53, rule = LifeHistory
74.A.A$71.A2.2A.A$71.3A3.A$75.2A.2A.A$73.2A.A.A.2A$19.B53.A2.2B$17.2A
3B52.2ABA$17.2A3B3.B45.3A2.BAB$17.BA3BA.3A44.A2.2A3B$16.BA3B6A45.A.A.
4B$16.A2.4BA.B45.2A.A.2AB2A.2A$17.5A49.A2.A3BA.A.2A$72.2A2.B.A.A$17.
5A52.5A.4A$16.A2.4BA.B48 ...

SVG icon for Golly

The appicon.xpm that comes with Golly sucks (and xpm is deprecated). Here is an SVG icon that you can import into inkscape and modify to your liking:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
version="1.0"
width="128"
height="128"
xmlns="http://www.w3.org ...

A compact switchable glider gun

It turns out that the age-old PRNG topic isn't exhausted yet. Here is a compact way to build a toggleable glider gun (the PRNGs are just a handy way to build a demo).

For some even periods a half-period gun can be used (not for all even periods though; the p46 had ...

True Herschel Heisenburps

These two use the ordinary common or garden reaction (the first may actually be useful, though there is a false Heisenburp that does the same thing):

x = 92, y = 28, rule = LifeHistory
27.DB48.CB$26.BDBD46.BCBC$12.2A11.2B2D33.2A11.2B2C$11.B2A2B8.4B9.2A
22.B2A2B8.4B9.2A ...

p54 true Heisenburp device using a teardrop


x = 156, y = 181, rule = LifeHistory
146.A4.4B$144.3A3.2A3B$143.A6.2BAB2A$143.2A3.AB.A.B2A$139.6B2.BABA3.B
$136.4B2AB4.2BA$134.6B2A3B2.4B$133.13B.2B2AB$134.7BA4B3.2A$134.7B2A4B
$135.5BABA4B$114.A21.10B$114.3A3.2A15.7B$117.A2.A.A13.8B$112.6A2B.A.A
.2A8 ...

p17 gun: Further reduction


x = 128, y = 108, rule = LifeHistory
34.A36.A$24.A7.3A26.A7.3A$23.A.A5.A28.A.A5.A$23.BA2B4.2A27.BA2B4.2A$
24.2B.6B28.2B.6B$25.6B31.6B$24.8B18.2A9.8B18.2A$22.9B.B17.A8.9B.B17.A
$22.11B14.BA.A8.11B14.BA.A$20.2AB.2B2A6B.B11.B2A7.2AB.4BA5B.B11.B2A$
19.A.AB.2B2A10B7.3B8.A.AB ...

@Jormungant: Something like this for p17:

x = 129, y = 133, rule = LifeHistory
16.A$16.3A$12.A6.A$12.3A3.2A$5.2A8.A2.4B$6.A7.2A4.2B3.BA$6.A.AB4.9B.B
A.A$7.2AB6.5BA4BA$9.2BA2.5B2AB2A.B$9.B2A7B2AB2AB$10.ABA12B45.A$11.9B
2A3B35.A7.3A$12.9BA3B34.A.A5.A$12.8BA.A.2BA32.A2BA4.2A$12.7B2AB2.2A.A
32.2B.6B ...

p17 gun: I was right about Jormungant's herschel factory:

x = 129, y = 109, rule = LifeHistory
34.A36.A$24.A7.3A26.A7.3A$23.A.A5.A28.A.A5.A$23.BA2B4.2A27.BA2B4.2A$
24.2B.6B28.2B.6B$25.6B20.A10.6B$24.B3A4B17.3A9.8B18.2A$22.2ABA5B.B15.
A10.9B.B17.A$22.2B2AB3A3B15.2A9.11B14.BA.A$20.A2B.10B.B10.4B7 ...

@iNoMed: Can be further reduced:

x = 140, y = 122, rule = LifeHistory
75.A$75.3A$39.A31.A6.A$29.A7.3A31.3A3.2A$28.A.A5.A27.2A8.A2.4B$28.BA
2B4.2A27.A7.2A4.2B3.BA37.A$29.2B.6B27.A.AB4.9B.BA.A34.3A$30.B2A3B20.A
9.2AB6.BA8BA34.A6.A$29.BAB2ABAB17.3A11.3B2.2B3A5B.B35.2A3.3A$27.3BA3B
AB.A15.A14.6B5A5B34 ...