Difference between revisions of "Practically perfect vacuum"
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* gasses (like water vapour) adsorb onto surfaces when vented (and spoil the vacuum later) | * gasses (like water vapour) adsorb onto surfaces when vented (and spoil the vacuum later) | ||
* gasses diffuse into material (especially at grain boundaries) | * gasses diffuse into material (especially at grain boundaries) | ||
| − | * large vessel sizes | + | * only large vessel sizes are possible |
== Becoming possible because ... == | == Becoming possible because ... == | ||
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That leaves the problem of cyclic dependency: | That leaves the problem of cyclic dependency: | ||
| − | [[ | + | |
| + | [[Gem-gum technology]]: | ||
* is capable of creating PPV but it also | * is capable of creating PPV but it also | ||
* needs PPV to in its [[nanofactory]] manufacturing devices | * needs PPV to in its [[nanofactory]] manufacturing devices | ||
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* [[Vacuum handling]] | * [[Vacuum handling]] | ||
| + | * [[Clean room lockout]] | ||
== Interesting off-topic question == | == Interesting off-topic question == | ||
Latest revision as of 16:49, 26 March 2021
A practically perfect vacuum (PPV) is needed by gem-gum technology since the the force applying mechanosynthesis that is synthesizing the crystolecules that form the basis of gem-gum technology needs it.
Contents
Currently impossible because ...
With current day technology (2021) it is not at all possible to reach a prefect vacuum. Limiting factors are:
- gasses (like water vapour) adsorb onto surfaces when vented (and spoil the vacuum later)
- gasses diffuse into material (especially at grain boundaries)
- only large vessel sizes are possible
Becoming possible because ...
In gem-gum technology all these limitations are lifted.
- very small vessel sized are possible (statistically ore likely that there is not a single atom in one vessel)
- flawless single crystal walls in those nanoscale chambers have no grain boundaries
- hydrogen passivated diamond chamber walls do not adsorb gasses well
Additionally strong open radical bond free gas molecule getter surfaces can be integrated.
(wiki-TODO: add a sketch about how small vessel size makes PPV in a vessel more likely)
Chicken egg problem
That leaves the problem of cyclic dependency:
- is capable of creating PPV but it also
- needs PPV to in its nanofactory manufacturing devices
Related: bootstrapping
Related
Interesting off-topic question
Can a part of the probability density of a fullyquantum mechanically delocalized gas molecule be transported away by atomically tight positive displacement mechanisms?
How much decoherence is there by interaction with walls at room temperature?
