[ExI] mbrains again: request

[Eugen Leitl]

On Wed, Sep 28, 2011 at 07:08:10AM -0700, spike wrote:

> Thanks Anders.  It isn't the envelope temperature that was the problem.
> Rather it was the innermost MNeurons appeared to have insufficient view of
> cold space to remain at a temperature low enough to operate a
> microprocessor.  However, what I am checking now is if that problem is a

You'd use different technologies in lower layer. E.g. SiC works well
enough at 800 K, which is hot enough to emit to power the next layer.
Stuff outside could be superconductive/ballistic transport, so it has
to be cold.

> characteristic of the particular design I chose.  So here's my next task: I
> need to create a model for the equilibrium temperature of each layer of
> MNeurons as a function of the physical characteristics of the MNeuron, such
> as thickness, diameter and so forth.

As a first approximation, you can model them as spherical blackbodies.
On the other hand, photonic sail for orbit control would be best done
as flat disks.
 
> If the outer envelope is big enough, the temperature out there is plenty
> cool.  It might be as simple as the innermost MNeurons need to orbit at a

Nodes.

> sufficient radius and sufficient separation from the next layer to maintain
> a temperature within the acceptable range.

The node cloud is a spherical shell with empty space inside where it's too hot.
This is a deviation from relativistic lag, which asks for a spherical assembly.

-- 
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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