Test tube baby

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Test tube baby
2o4b2o$obo2bobo$2bo2bo2b$2bo2bo2b$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 THUMBSIZE 2 ]]
Pattern type Oscillator
Family Test tube baby
Number of cells 14
Bounding box 8×5
Frequency class 29.0
Period 2
Mod 2
Heat 2
Volatility 0.13
Strict volatility 0.13
Rotor type Orthogonal on-off
Discovered by Unknown
Year of discovery Unknown

Test tube baby is a period-2 oscillator, being the smallest oscillator to support the two-cell domino rotor. It and its variants are occasionally considered to be billiard tables.[1]

Uses

The test tube baby is sometimes used when two eater 1s need to be placed close together. The eating mechanism is period-independent despite the oscillator being period 2.

Commonness

Test tube baby is about the twenty-fifth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than cis-beacon on anvil and more common than octagon 2.[2] It is the 24th most common oscillator on Adam P. Goucher's Catagolue.

It is the most common billiard table naturally, depending on the definition of billiard table.

Glider synthesis

A 5-glider synthesis of this oscillator was found and submitted to Catagolue by an unknown user in March 2022.[3]

Variants

name/pattern description commonness
7bob$2o4bobo$obo2bobob$2bo2bo3b$2bo2bo3b$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Odd test tube baby
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RLE: here Plaintext: here
a tub is used to stabilize one corner ~55th most common naturally-occurring oscillator in Achim Flammenkamp's census[2], 59th most common oscillator on Adam P. Goucher's Catagolue
bo6bob$obo4bobo$bobo2bobob$3bo2bo3b$3bo2bo3b$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Tub test tube baby
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RLE: here Plaintext: here
tubs used to stabilize both corners ~29th most common naturally-occurring oscillator in Achim Flammenkamp's census[2], 29th most common oscillator on Adam P. Goucher's Catagolue
2o$o2bo4b2o$b2obo2bobo$4bo2bo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Claw test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
a claw is used to stabilize one corner 96th most common oscillator on Adam P. Goucher's Catagolue
x = 12, y = 6, rule = B3/S23 2o8b2o$o2bo4bo2bo$b2obo2bob2o$4bo2bo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Claws test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
claw used to stabilize both corners
10bo$b2o6bobo$o2bo4bo2bo$obobo2bob2o$bo2bo2bo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Loaf test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
loaf used to stabilize both corners
x = 10, y = 5, rule = B3/S23 obo4bobo$2obo2bob2o$3bo2bo$3bo2bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Hooks test tube baby
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RLE: here Plaintext: here
hook used to stabilize both corners
2o6bo$obo4bobo$bobo2bob2o$3bo2bo$3bo2bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Boat test tube baby
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RLE: here Plaintext: here
boat used to stabilize both corners
b2o$o2bo4b2o$b2obo2bobo$4bo2bo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Beehive test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
beehive used to stabilize one corner 77th most common oscillator on Adam P. Goucher's Catagolue
x = 12, y = 6, rule = B3/S23 b2o6b2o$o2bo4bo2bo$b2obo2bob2o$4bo2bo$4bo2bo$5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Beehives test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
beehive used to stabilize both corners
11b2o$2b2o6bo2bo$bo2bo4bo2bo$o2bobo2bob2o$b2o2bo2bo$5bo2bo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ]]
Mango test tube baby
(click above to open LifeViewer)
RLE: here Plaintext: here
mango used to stabilize both corners

See also

  • Krake, two eater 1s placed closer together by one cell

References

  1. Dave Greene (July 3, 2019). Re: Thread for basic questions (discussion thread) at the ConwayLife.com forums
  2. 2.0 2.1 2.2 Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. Adam P. Goucher (March 23, 2022). "shinjuku (#2239789751)". GitLab. Retrieved on May 13, 2022.


External links

  • 14P2.7 at Heinrich Koenig's Game of Life Object Catalogs