Periodic catalyst: Difference between revisions
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If, in the interaction between an active object and an oscillator, only the [[spark]]s of the oscillator (if any) are directly influencing the birth and/or death of the active object's cells, then the oscillator cannot be called a periodic catalyst. | If, in the interaction between an active object and an oscillator, only the [[spark]]s of the oscillator (if any) are directly influencing the birth and/or death of the active object's cells (as in [[Lx84]], [[Lx73]] or [[Lx65]]), then the oscillator cannot be called a periodic catalyst. | ||
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|caption = 45P25. The fumarole on the right catalyses the active region without using its domino spark. | |||
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Sometimes, custom period-3 or period-4 catalysts are found using a search program to complete an oscillator, as shown in this [[Pi-heptomino hasslers#p69|p69 pi-heptomino hassler]]. | Sometimes, custom period-3 or period-4 catalysts are found using a search program to complete an oscillator, as shown in this [[Pi-heptomino hasslers#p69|p69 pi-heptomino hassler]]. | ||
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Some periodic catalysts can also function as stable catalysts: an example of this is [[Coe's p8]] being used to convert a [[beehive]] to a [[block]]. This trick is exploited in [[p8 glider reflector]] and the | Some periodic catalysts can also function as stable catalysts: an example of this is [[Coe's p8]] being used to convert a [[beehive]] to a [[block]]. This trick is exploited in [[p8 glider reflector]] and [[HRx74B]]. Other examples include [[test tube baby]] being used as an [[eater]] [[weld]] or the periodic [[Eater 2]] replacements in [[90P51]], [[74P85]], [[72P68]] and [[134P39.1]]. | ||
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==See also== | ==See also== | ||
* [[ | *[[Toad reaction]] | ||
*[[Period-2 catalysts]] | |||
*[[Mazing]], [[Antiphase why bother]], [[fumarole]], [[traffic stop]], [[42P38]], [[killer toads]] and [[killer candlefrobras]], [[foxclock]] - for more examples of oscillators acting as catalysts | |||
[[Category:Catalysts and catalyses]] | [[Category:Catalysts and catalyses]] | ||
Latest revision as of 13:43, 21 October 2024
A periodic catalyst is an oscillator that can act as a catalyst. An example of a periodic catalyst is toad, which can catalyse an octomino 2 like so:
| (click above to open LifeViewer) |
If, in the interaction between an active object and an oscillator, only the sparks of the oscillator (if any) are directly influencing the birth and/or death of the active object's cells (as in Lx84, Lx73 or Lx65), then the oscillator cannot be called a periodic catalyst.
| 45P25. The fumarole on the right catalyses the active region without using its domino spark. (click above to open LifeViewer) RLE: here Plaintext: here |
Sometimes, custom period-3 or period-4 catalysts are found using a search program to complete an oscillator, as shown in this p69 pi-heptomino hassler.
| (click above to open LifeViewer) RLE: here Plaintext: here |
The term "periodic catalyst" can also refer to a catalyst which uses an oscillator that restores a transparent still life, rather than interacting with an active object, like with this pattern:
| (click above to open LifeViewer) |
Some periodic catalysts can also function as stable catalysts: an example of this is Coe's p8 being used to convert a beehive to a block. This trick is exploited in p8 glider reflector and HRx74B. Other examples include test tube baby being used as an eater weld or the periodic Eater 2 replacements in 90P51, 74P85, 72P68 and 134P39.1.
| (click above to open LifeViewer) |
See also
- Toad reaction
- Period-2 catalysts
- Mazing, Antiphase why bother, fumarole, traffic stop, 42P38, killer toads and killer candlefrobras, foxclock - for more examples of oscillators acting as catalysts