F171
| F171 | |||||||||
| View static image | |||||||||
| Pattern type | Conduit | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Conduit type | Elementary | ||||||||
| Input | Herschel | ||||||||
| Number of cells | 42 | ||||||||
| Output orientation | Unturned | ||||||||
| Output offset | (29, -17) | ||||||||
| Step | 171 ticks | ||||||||
| Recovery time (ignoring FNG if any) |
227 ticks | ||||||||
| Minimum overclock period (ignoring FNG if any) |
Unknown | ||||||||
| Spartan? | Yes | ||||||||
| Dependent? | No | ||||||||
| Discovered by | Brice Due | ||||||||
| Year of discovery | 2006 | ||||||||
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F171 is an elementary conduit, the seventeenth Herschel conduit, discovered by Brice Due in August 2006 with ptbsearch using only eater 1s as catalysts.[1] This was the first new Herschel conduit discovery since 1998. After 171 ticks, it produces a Herschel at (29, -17) relative to the input as well as a glider heading northwest.
In the pattern shown in the infobox, a ghost Herschel marks the output location.
Recovery time
The conduit's recovery time is 227 ticks, slower than many of the original sixteen conduits because of the delayed destruction of a temporary blinker, though the circuit itself is clearly Spartan.
Since its discovery, it was known that it could be improved to 120 ticks by adding sparkers of various periods to suppress the blinker. The variant with a period-2 clock is shown below the original one.
On July 29, 2024, Simon Ekstrom found (using Silk) a collection of herschel-to-glider converters.[2] On September 26, EvinZL noticed that one of these, without the output herschel suppressed, was an RT120 F171 variant with a stable catalyst in place of the sparker.[3]
| The stable catalyst exhibiting the repeat time of 120. It is, however, non-spartan. (click above to open LifeViewer) |
References
- ↑ New Herschel Conduit Discoveries at Game of Life News. Posted by Dave Greene on March 3, 2007.
- ↑ simeks (July 29, 2024). Re: H-to-G and H-to-Gn converter collection (discussion thread) at the ConwayLife.com forums
- ↑ EvinZL (September 26, 2024). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
External links
- F171 at the Life Lexicon