Bigger surface area of smaller machinery: Difference between revisions
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* '''[[Common critique towards diamondoid atomically precise manufacturing and technology]]''' | * '''[[Common critique towards diamondoid atomically precise manufacturing and technology]]''' | ||
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* '''[[Twice the surface area of half the volume]]''' | * '''[[Twice the surface area of half the volume]]''' | ||
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Latest revision as of 12:01, 13 August 2026
Nanomachinery will have much more surface area per volume due to how surface per volume scales for smaller parts.
This predictably brings up some critique points of the proposed technology of macroscale style machinery at the nanoscale.
See below.
Common concerns / critique points
Particularly …
★ (A) the concerns of friction losses due to Higher bearing area of smaller machinery
★ (B) the concern of oxidation due to higher exposed surface area of smaller machinery
Respective resolutions
In brief:
★ (A) Much less nanomachibery volume is needed than what one might expect
… due to (A1) the lesser known scaling law of higher throughput of smaller machinery.
… plus there are tricks (A2) to reduce friction by increasing surface area
… which drops sliding/rolling speeds resolving the superficially apparent paradox.
… (hundredfold smaller frictionlosses from tenfold slowdown)
★ (B) just seal the nanomachinery up and design it such that it does not easily break open.
… See: Hierarchical intentional breaking interfaces & Fruit interior analogy
… In most systems the environment exposed surface is a miniscule fraction of system surface
… and one can deal with a much smaller design space for viable surfaces there.
For more details see links below.
Related
- Rising surface area per volume of smaller machinery parts (wiki-TODO: Redundant page?)
- Twice the surface area of half the volume
- Hundredfold smaller frictionlosses from tenfold slowdown
- Higher throughput of smaller machinery
- Scaling laws by degree of knownness
Oxydation, Hydrolysation, …
- Oxidation & Fruit interior analogy
- Atomically precise surface passivation & Passivation (disambiguation)
Friction losses
Concern:
Higher bearing area of smaller machinery
Solutions:
(A1) needing much less nanomachinery due to the scaling law of higher throughput of smaller machinery
(A2) Increasing bearing area to decrease friction …
… using the scaling law of hundredfold smaller frictionlosses from tenfold slowdown
… via things like infinitesimal bearings and metamaterials employing such principles.