Tempest

Tempest
x = 8, y = 8, rule = B3/S23 5bo$2bo3b2o$bob2o$2bobob2o$2b2o2b2o$o5bo$bob3o$bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 30 GPS 4 ]]
View static image
Pattern type	Oscillator
Number of cells	24
Bounding box	8 × 8
Period	4 (mod: 2)
Heat	20
Volatility	0.83 | 0.83
Kinetic symmetry	/xk
Discovered by	Dean Hickerson
Year of discovery	1989
Rules Outer-totalistic rules B3/S23 – B3678/S0235678 # of rules 28 = 256 Isotropic rules B3-ey/S2-in3aenqr – B2ikn34cjkqrt5-a6-en78/S0234-artyz5678
Glider synthesis Fewest gliders 8 Catagolue-generated RLE synthesis
Pattern files Plaintext tempest.cells RLE tempest.rle
Identifiers apgcode xp4_04qkc1qqz1606621

Tempest is a period-4 oscillator that was found by Dean Hickerson in August, 1989 (4.0.3 in his oscillator stamp collection).

It first appeared in an asymmetric soup submitted to Catagolue by Rob Liston on February 9, 2020.

Hassling capabilities

In September of 1989, Hickerson discovered two ways in which multiple tempests can be used to hassle other small objects. Two tempests and two clocks can be used to hassle a Z-hexomino, and four tempests can be used around an object that resembles an equals sign. This latter object closely resembles sixty-nine, but has a lower kinetic symmetry of .crc compared to sixty-nine's nrk.

x = 22, y = 15, rule = B3/S23 2bobo$2bobob2o$2o4bo6bo$4b3o6bobo$2obo2bo5bobo$3bo2bo7bo$b5o3bo$bo7b4o 7bo$12bo3b5o$7bo7bo2bo$7bobo5bo2bob2o$6bobo6b3o$8bo6bo4b2o$14b2obobo$ 17bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 12 GPS 4 AUTOSTART T 0 PAUSE 1 T 23 PAUSE 1 LOOP 24 ]] Hassling a Z-hexomino (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 23, y = 23, rule = B3/S23 11bo$8bo3b2o$7bob2o$8bobob2o$8b2o2b2o$6bo5bo$7bob3o4bob2o$7bob2o5bob3o $15bo5bo$2bo14b2o2b2o$2o3bo4b3obo2bobob2o$3b2obo9bob2o$2obobo2bob3o4bo 3b2o$2o2b2o14bo$bo5bo$2b3obo5b2obo$3b2obo4b3obo$10bo5bo$9b2o2b2o$9b2ob obo$12b2obo$9b2o3bo$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 ZOOM 12 GPS 4 AUTOSTART T 0 PAUSE 1 T 23 PAUSE 1 LOOP 24 ]] Hassling an "equals sign" (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

Occurrence

See also: List of common oscillators

Information on this oscillator's commonness with respect to other naturally-occurring patterns is currently unknown.

Glider synthesis

A 19-glider synthesis was found by Jason Summers early on and is recorded in Mark Niemiec's database. It was reduced to 11 gliders in 2020. A 8-glider synthesis was found in December 2022. Currently tempest is known to be constructible using 8 gliders.

See also

• Mazing

External links

• Tempest at Adam P. Goucher's Catagolue
• The 571 24-bit period 4 oscillators at Mark D. Niemiec's Life Page (download pattern file: 24/24p4-4.rle)
• 24P4.4 at Heinrich Koenig's Game of Life Object Catalogs