Difference between revisions of "Glider-to-Herschel converter"

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{{Glossary}}
{{Glossary}}
A '''glider-to-Herschel converter''' (abbreviated to '''G-to-H''') is a [[converter]] that takes a [[glider]] as an input [[signal]] and produces a [[Herschel]] output, which can then be used by other [[conduit]]s. Early examples include [[BFx59H injector]], [[Callahan G-to-H]], [[Silver G-to-H]], and [[p8 G-to-H]] for periodic circuits. A more compact recent example is the [[syringe]].
A '''glider-to-Herschel converter''' (abbreviated to '''G-to-H''') is a [[converter]] that takes [[glider]](s) as input and produces a [[Herschel]] output, which can then be used by other [[conduit]]s.
 
There are known [[glider syntheses]] for a clean [[B-heptomino]] that cost two gliders, and deleting the residual [[block]] consumes one more, resulting a total of 3 gliders for a Herschel synthesis [[recipe]]. Therefore, devices that convert one or two gliders into a Herschel with reasonably low [[recovery time]] are of academic interest.
 
Several two-glider-to-Herschel converters were known as early as the mid-1990's, with no synchronization needed between the two input gliders, including [[Callahan G-to-H]] and unidirectional and 90-degree variants of the [[Herschel receiver]].
 
Many examples including [[BFx59H injector]] and [[Jormungant's G-to-H]] consume two [[synchronized]] gliders. The following pattern was found by [[Emerson J. Perkins]] in June 21, {{year|2009}}.<ref name="post396" />
 
{{EmbedViewer
|pname = perkinsgtoh
|position = center
|viewerconfig = #C [[ THUMBNAIL THUMBSIZE 2 ZOOM 16 AUTOSTART GPS 15 LOOP 44 PAUSE 2 T 43 PAUSE 2 ]]
|caption = A 2G-to-H converter consuming [[Gn|G9]] [[tandem glider]].<br>It has a recovery of 74 ticks when followed by a<br>[[dependent conduit]].
}}
 
By recycling an output glider for cleanup, a periodic G-to-H (with a [[p8 bouncer]]) and the [[Silver G-to-H]] (with Herschel conduits) can be constructed from Callahan G-to-H.  The search for [[stable]] 1G-to-H converters went on for many years. With modern [[catalyst]]-searching tools, new mechanisms like the [[syringe]] and the [[bronco]] were discovered, the former of which has found a variety of important applications in recent [[signal]] [[circuitry]].


==See also==
==See also==
* [[Jormungant's G-to-H]]
* [[Herschel-to-glider]]
* [[Bronco]]
 
==References==
<references>
<ref name="post396">{{LinkForumThread
|p          = 396
|format    = ref
|title      = Small 90 degree reflector
|author    = Emerson J. Perkins
|date      = June 21, 2009
}}</ref>
</references>


==External links==
==External links==
{{LinkLexicon|filename=lex_g.htm#gtoh|patternname=G-to-H}}
{{LinkLexicon|lex_g.htm#gtoh|patternname=G-to-H}}

Revision as of 23:55, 1 January 2021

A glider-to-Herschel converter (abbreviated to G-to-H) is a converter that takes glider(s) as input and produces a Herschel output, which can then be used by other conduits.

There are known glider syntheses for a clean B-heptomino that cost two gliders, and deleting the residual block consumes one more, resulting a total of 3 gliders for a Herschel synthesis recipe. Therefore, devices that convert one or two gliders into a Herschel with reasonably low recovery time are of academic interest.

Several two-glider-to-Herschel converters were known as early as the mid-1990's, with no synchronization needed between the two input gliders, including Callahan G-to-H and unidirectional and 90-degree variants of the Herschel receiver.

Many examples including BFx59H injector and Jormungant's G-to-H consume two synchronized gliders. The following pattern was found by Emerson J. Perkins in June 21, 2009.[1]

x = 24, y = 14, rule = B3/S23 10bo9bo$10bobo5b2o$10b2o7b2o3$21bo$21bo$3bob2o3b2o9b3o$b3ob2o3b2o11bo$ o$b3ob2o$3bobo$3bobo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 ZOOM 16 AUTOSTART GPS 15 LOOP 44 PAUSE 2 T 43 PAUSE 2 ]]
A 2G-to-H converter consuming G9 tandem glider.
It has a recovery of 74 ticks when followed by a
dependent conduit.
(click above to open LifeViewer)
RLE: here Plaintext: here

By recycling an output glider for cleanup, a periodic G-to-H (with a p8 bouncer) and the Silver G-to-H (with Herschel conduits) can be constructed from Callahan G-to-H. The search for stable 1G-to-H converters went on for many years. With modern catalyst-searching tools, new mechanisms like the syringe and the bronco were discovered, the former of which has found a variety of important applications in recent signal circuitry.

See also

References

  1. Emerson J. Perkins (June 21, 2009). Small 90 degree reflector (discussion thread) at the ConwayLife.com forums

External links