Difference between revisions of "Speed tunnel"
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|viewerconfig = #C [[ THUMBNAIL THUMBSIZE 2 THEME Book WIDTH 800 HEIGHT 480 X 5 Z 10 PAUSE 2 AUTOSTART THUMBSIZE 2 GPS 20 LOOP 280 ]] | |viewerconfig = #C [[ THUMBNAIL THUMBSIZE 2 THEME Book WIDTH 800 HEIGHT 480 X 5 Z 10 PAUSE 2 AUTOSTART THUMBSIZE 2 GPS 20 LOOP 280 ]] | ||
|position = center | |position = center | ||
|caption = | |caption = Composite glider splitter using a speed tunnel, [[HRx65R]] and [[snark64]]; repeat time is 61, the current minimum for a glider-to-2-glider converter | ||
|style = width:300px; | |style = width:300px; | ||
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Latest revision as of 10:04, 25 March 2024
| Speed tunnel | |||||||||
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| Pattern type | Conduit | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Conduit type | Converter | ||||||||
| Input | Glider | ||||||||
| Output | Herschel | ||||||||
| Number of cells | 109 | ||||||||
| Bounding box | 25 × 33 | ||||||||
| Step | Unknown | ||||||||
| Recovery time (ignoring FNG if any) |
61 ticks | ||||||||
| Minimum overclock period (ignoring FNG if any) |
45 ticks | ||||||||
| Spartan? | No | ||||||||
| Discovered by | Tanner Jacobi | ||||||||
| Year of discovery | 2022 | ||||||||
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This article may require cleanup to meet LifeWiki's quality standards. |
The speed tunnel is a stable glider-to-Herschel converter discovered by Tanner Jacobi on July 24, 2022.[1] It is composed of a transparent block, an eater 1, a bait loaf, an eater bridge eater, an unnamed 19-cell catalyst,[2] and a beehive push catalyst. The glider-loaf collision would make a block on its own, but it is perturbed and turns into a pi-heptomino, then becoming a B-heptomino while restoring the bait loaf, finally yielding a Herschel and restoring the transparent block. In the pattern shown in the infobox, a ghost Herschel marks the output location.
Its repeat time is 61 ticks due to a spark from the beehive push reaction. To prevent interference of the output's first natural glider at a separation of 61 or 62 ticks, a variant of tub-with-tail eater can be used to replace half of the eater bridge eater; the block of the TWIT is to be placed at the location marked in the infobox by a duoplet.
Further overclocking thins the glider stream: at periods 49, 50, 53, 56, 57, and 58, every second glider is deleted, and at period 45, only every third glider goes through.
The low repeat time makes speed tunnel a faster alternative to the syringe, which has a repeat time of 78 ticks and overclock periods of 74 and 75.
Derivatives
Jubjub reflector
| "Jubjub reflector" (click above to open LifeViewer) RLE: here Plaintext: here |
Based on the initial reaction, Simon Ekström constructed a 180-degree glider reflector, with a compact bounding box of 22 × 23 and overlapping input and output lane, as shown above.[3] This in turn made various new conduit cleanups possible, such as a stable version of the long-known Lx134,[4] a non-period multiplying version of the Fx70[5] and a new faster Rx Herschel turn, Rx113.[6] Meanwhile, it also inspired Entity Valkyrie to find the p82 pi-heptomino hassler. Similarly it led to the discovery of the p68 pi-heptomino hassler.
It can be replaced by the Galumpher in circuitry as it outputs a glider on the same lane, 0hd. This allows for Neo-Spartan variants of an Rx113 first found by affamatodidio, and Lx134.
A loop made out of two jubjub reflectors are the SKOPs of period-118 and period-142.
| Rx113, which uses a Jubjub reflector for cleanup. Not to be confused with the combination of HRx65R and RF48H that bears the same label (click above to open LifeViewer) |
| Lx134, which uses a Jubjub reflector for cleanup (click above to open LifeViewer) |
| Fx70, which can only be connected to a dependent conduit. Without the jubjub reflector, it is a x4 period multiplier (click above to open LifeViewer) |
| SKOP 118, a jubjub loop. (click above to open LifeViewer) |
Pi-to-Herschel
A 54-tick pi-to-Herschel converter was found reusing the second stage of the speed tunnel,[7] leading to an F149,[8] F114 and an Lx129[9] Herschel conduits.
| F149 (HF95P + P?12? + ??42H) (click above to open LifeViewer) |
| F114 (H?72? + ??42H) (click above to open LifeViewer) |
| Lx129 (HL75P + P?12? + ??42H) (click above to open LifeViewer) |
(The first "?" in "??42H" refers to the unnamed active object with extended Wechsler format "e9jp", which appears 24 generations after the glider collides with the loaf. The second "?" is because the canonical orientation of the "e9jp" object has not been decided.)
Glider-to-block
A very useful high-clearance glider to block converter was discovered by Luke Kiernan in October 2023.[10]
| glider to block converter with high diagonal clearance (click above to open LifeViewer) RLE: here Plaintext: here |
This new glider to block has the additional property of being a safe toggle switch. A second glider following on the same input lane will cleanly destroy a block created by the previous glider. This means that there is no combination of "SET" and "READ" inputs that can destroy the mechanism, as long as enough time is allowed to pass between inputs. By contrast, the beehive stopper, the demultiplexer, and most other known factories used in logic circuitry will fail catastrophically if a second SET input occurs before a READ input removes the key object.
Minimum repeat time glider splitter
| Composite glider splitter using a speed tunnel, HRx65R and snark64; repeat time is 61, the current minimum for a glider-to-2-glider converter (click above to open LifeViewer) RLE: here Plaintext: here |
See also
- Snark
- Herschel receiver
- Herschel transmitter
- Jormungant's G-to-H
- p82 pi-heptomino hassler, which was found by manupulating the initial reaction.
References
- ↑ Tanner Jacobi (July 24, 2022). Re: The Hunting of the Elementary Conduits (discussion thread) at the ConwayLife.com forums
- ↑ xs19_39egmaz0db at Adam P. Goucher's Catagolue
- ↑ Simon Ekström (July 25, 2022). Re: The Hunting of the Elementary Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (July 25, 2022). Re: The Hunting of the Elementary Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Haycat Durnak (October 14, 2023). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Entity Valkyrie (September 9, 2022). Re: The Hunting of the Elementary Conduits (discussion thread) at the ConwayLife.com forums
- ↑ EvinZL (July 26, 2022). Re: The Hunting of the Elementary Conduits (discussion thread) at the ConwayLife.com forums
- ↑ EvinZL (July 26, 2022). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Entity Valkyrie (July 26, 2022). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Luke Kiernan (October 9, 2023). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
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