View source for Why gemstone metamaterial technology should work in brief

The idea of atomically precise [[gem-gum factories|gemstone based on-chip factories]] and [[gem-gum technology|their technology]] has faced major disbelieve and push-back in the past. <br>
Here are the probably hardest arguments for this tech to be actually possible summarized in as brief a way as possible.

== Regarding concerns about friction ==

[[File:Nanotube-based-thermal-nanomotor1.jpg|400px|thumb|right|Coaxial nanotube bearing based nano-motors have been experimentally built and tested. While still very crude they already show very little friction. Much unlike the problems with [[sticktion]] and wear in photolithographically produced [[MEMS systems]]. – Coaxial nanotubes are quite similar in characteristics to [[crystolecule]] bearing so the working nanotube bearings give '''experimental evidence for [[crystolecular element]]s working with low friction an [[wear free]]'''.]]

Concerns about friction have been experimentally dispelled (not only theoretically). <br>
Coaxial nanotubes are already experimentally accessible and they indeed show [[superlubricity]].

* Newer (2017) work on friction (theoretical and experimental). <br> See: [[Evaluating the Friction of Rotary Joints in Molecular Machines (paper)]] 
* Theoretical estimations on frictions can be found in the book: [[Nanosystems]]

More info on and discussion of less common concerns here: 
* [[Macroscale style machinery at the nanoscale]]
* [[Friction]]

== Regarding concerns about atom-by-atom pick-and-place assembly aka [[piezochemical mechanosynthesis]] ==

=== Experimental demonstration (on silicon) ===

[[File:Piezochemical-silicon-mechanosynthesis-demo.png|400px|thumb|left|Extraction an re-deposition a a single silicon atom (at 78K) was experimentally demonstrated. This gives '''experimental evidence for [[piezochemical mechanosynthesis]] working'''.]] 

It was possible to experimentally demonstrate mechanosynthesis of silicon. <br>
Abd that even even with today's still very crude means (meaning blunt tips). <br>
See: [[Silicon mechanosynthesis demonstration paper]] or more generally: [[Experimental demonstrations of single atom manipulation]]
* Silicon is a relevant material quite similar in covalent character to diamond.
* This has been done an reasonable temperatures (meaning not liquid helium but liquid nitogen)

=== Highly meticulous theoretical analysis (with carbon, a complete system) ===

It has been shown that the infamous [[The finger problems|finger problems]] like the  [[sticky finger problem]] and the [[fat finger problem]] are invalid. <br>
See: [[A Minimal Toolset for Positional Diamond Mechanosynthesis (paper)]]

== Related ==

* [[Common misconceptions about atomically precise manufacturing]]
* [[Macroscale style machinery at the nanoscale]]
* [[Higher throughput of smaller machinery]] – [[Scaling law]]s
* [[Exploratory engineering]]
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* [[Superlubricity]]
* [[Piezochemical mechanosynthesis]]