L156
| L156 | |||||||||
| View static image | |||||||||
| Pattern type | Conduit | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Conduit type | Composite | ||||||||
| Input | Herschel | ||||||||
| Number of cells | 56 | ||||||||
| Output orientation | Turned left | ||||||||
| Output offset | (17, -41) | ||||||||
| Step | 156 ticks | ||||||||
| Recovery time (ignoring FNG if any) |
62 ticks | ||||||||
| Minimum overclock period (ignoring FNG if any) |
Unknown | ||||||||
| Spartan? | Yes | ||||||||
| Dependent? | No | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1996 | ||||||||
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L156 is a composite conduit, one of the original sixteen Herschel conduits, discovered by Dave Buckingham on August 7, 1996. It is made up of three elementary conduits: HLx69R, RF28B, and BFx59H. After 156 ticks, it produces a Herschel turned 90 degrees counterclockwise at (17, -41) relative to the input.
Its recovery time is 62 ticks. It can be made Spartan by replacing the snake with an eater 1 in one of two orientations. In the pattern shown in the infobox, a ghost Herschel marks the output location.
Variants
Three variants are shown below. The first is the one in the infobox. The second uses an alternative RF28B to produce a glider in a different direction. The third uses a structure similar to RNE-19T84 to produce two extra gliders and convert the conduit into a period doubler.
| Three L156 variants (click above to open LifeViewer) RLE: here Plaintext: here |
The third L156 variant produces an extra block, which blocks the next Herschel. For it not to be period-doubling, it must be deleted using either a reflector (such as the p8 bumper + dependent conduit) or a set of conduits (e.g. R64 + F117, at the cost of impractically high repeat time).
Gallery
 HLx69R |
+ |  RF28B |
+ |  BFx59H |
| The elementary conduits that form L156 | ||||
See also
External links
- L156 at the Life Lexicon
Buckingham on B-heptominos in oscillators at Paul Callahan's Page of Conway's Life Miscellany