Rod logic

(wiki-TODO: Cover the below points)

• Add a basic explanation
• Show and explain basics (retractile cascades - collect all relevant images here)
• Show and explain Robert Baruchs reversible logic latch memory cell (from links below)
• Different designs polyyne rods vs crystolecule rods
• Considerations regarding friction/dissipation and radiation hardness

Relation to reversible computing

Rod logic seems to lend itself to reversible computing in an easy to understand/comprehend way.
As such it may be a good didactic tool for teaching reversible computing principles.

Related

• Polyyne rods
• Crystolecule rods
• Zuse Z1 - not rod logic but reciprocative logic
  (depending on friction & gravity thus not 1:1 usable for nanoscale)
• Buckling logic
• Topological blocking linkage logic

Reversible

• Reversible computation (also "reversible logic" or "reversible data processing")
• Reversible actuation
• Retractile cascades
• Nanosystems - sections on rod logic

Slide 28 here on needed sequence for reversible state transitions for a memory latch:
https://www.powershow.com/view/992b6-MWUzY/Principles_of_Adiabatic_Processes_powerpoint_ppt_presentation
(wiki-TODO: Add this highly relevant slide as picture here under assumption of fair use. Also on pages reversible logic pages and perhaps dissipation sharing.)

External links

Rod logic (&bucking logic) for reversible mechanical computation:

• https://www.zyvex.com/nanotech/mechano.html

Robert C. Baruchs old work on rod logic

Especially interesting here is a latching memory cell that
seems simpler and more natural than the one presented in the book Nanosystems.

Tagged "rod logic" (2010-02-18 & 2012-09-19 ~ first & last snapshot)

• https://web.archive.org/web/20100228035706/http://halfbakedmaker.org/tag/rod-logic/
• https://web.archive.org/web/20120919054837/http://halfbakedmaker.org/tag/rod-logic/

Tagged "rodulator" (2011-01-06 & 2012-09-19 ~ first & last snapshot)

• https://web.archive.org/web/20110106011754/http://halfbakedmaker.org/tag/rodulator/
• https://web.archive.org/web/20120919053953/http://halfbakedmaker.org/tag/rodulator/

2009-12-05 Intro to Rod Logic (2012-07-10 = last snapshot on rich website)

• https://web.archive.org/web/20120710060527/http://halfbakedmaker.org/2009/12/05/intro-to-rod-logic/

2009-12-18 LEGO 1-bit full adder (2012-09-19 = latest snapshot on rich website)

• https://web.archive.org/web/20120919053830/http://halfbakedmaker.org/2009/12/18/lego-1-bit-full-adder/
• https://www.yumpu.com/en/document/view/11474670/rod-logic-1-bit-full-adder-in-lego-the-half-baked-maker

2009-12-24 Rod Logic Memory (2010-04-26 = last snapshot) <= THIS!!

• https://web.archive.org/web/20100426070543/http://halfbakedmaker.org/2009/12/24/rod-logic-memory/

2010-01-22 Metal computing, part 1 (2010-04-30 = last snapshot)

• https://web.archive.org/web/20100430070933/http://halfbakedmaker.org/2010/01/22/metal-computing-part-1/

About page (2019-12-29 = last snapshot on rich website) (2019-12-29 with mail address)

• https://web.archive.org/web/20120912093752/http://halfbakedmaker.org/about/
• https://web.archive.org/web/20191229022914/http://halfbakedmaker.org/about/

This says all the stuff is licensed CC-BY-SA-3.0

• https://github.com/RobertBaruch
• https://www.youtube.com/channel/UCBcljXmuXPok9kT_VGA3adg

A pdf file with instructions on how to build a rod-logic-1-bit-full-adder with LEGO:
https://www.yumpu.com/en/document/view/11474670/rod-logic-1-bit-full-adder-in-lego-the-half-baked-maker

Other people on rod logic

• https://www.jamiekawabatarobotics.com/?p=40
• http://www.jamiekawabatarobotics.com/?p=40
• https://anthony-zhang.me/blog/rod-logic/

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• https://www.randomwraith.com/logic.html