Test tube baby

From LifeWiki
Jump to navigation Jump to search
Test tube baby
2o4b2o$obo2bobo$2bo2bo2b$2bo2bo2b$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 3 ZOOM 48 GPS 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
Ambox notice.png This article may require cleanup to meet LifeWiki's quality standards.

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 works identically, regardless of the phase of the oscillator.[2]

Occurrence

See also: List of common oscillators

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.[3] 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 Carson Cheng[4] in March 2022.[5]

x = 18, y = 11, rule = B3/S23 bo14bo$2bo5b2o5bo$3o4bo2bo4b3o$7bo2bo$5b2o4b2o$4bo8bo$4bo8bo$5b2o4b2o$7bo2bo$7bo2bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 THUMBSIZE 2 ZOOM 14 THEME Book AUTOSTART GPS 6 T 0 PAUSE 1 T 20 PAUSE 1 LOOP 25 ]]
Two gliders convert a lake 2 into a test tube baby
(click above to open LifeViewer)

Variants

pattern name description commonness
Oddtesttubebaby.png Odd test tube baby a tub is used to stabilize one corner ~55th most common naturally-occurring oscillator in Achim Flammenkamp's census[3], 59th most common oscillator on Adam P. Goucher's Catagolue
Tubtesttubebaby.png Tub test tube baby tubs used to stabilize both corners ~29th most common naturally-occurring oscillator in Achim Flammenkamp's census[3], 29th most common oscillator on Adam P. Goucher's Catagolue
Clawtesttubebaby.png Claw test tube baby a claw is used to stabilize one corner 96th most common oscillator on Adam P. Goucher's Catagolue
Clawstesttubebaby.png Claws test tube baby claw used to stabilize both corners
Loaftesttubebaby.png Loaf test tube baby loaf used to stabilize both corners
Hookstesttubebaby.png Hooks test tube baby hook used to stabilize both corners
Boattesttubebaby.png Boat test tube baby boat used to stabilize both corners
Beehivetesttubebaby.png Beehive test tube baby beehive used to stabilize one corner 77th most common oscillator on Adam P. Goucher's Catagolue
Beehivestesttubebaby.png Beehives test tube baby beehive used to stabilize both corners
Mangotesttubebaby.png Mangoes test tube baby mango used to stabilize both corners

See also

References

  1. Dave Greene (July 3, 2019). Re: Thread for basic questions (discussion thread) at the ConwayLife.com forums
  2. MathAndCode (February 7, 2021). Re: Eater Welding Guide (discussion thread) at the ConwayLife.com forums
  3. 3.0 3.1 3.2 Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  4. Carson Cheng (July 15, 2022). Message in #cgol on the Conwaylife Lounge Discord server
  5. shinjuku (#2239789751) (March 23, 2022). Job triggered by Adam P. Goucher at GitLab Catagolue project. Retrieved on May 13, 2022.

External links