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For Calliban re post about Lattice Confinement Fusion:
https://newmars.com/forums/viewtopic.ph … 59#p231959
That presentation is dense with information.
Hopefully the paper was well received and productive. There should be multiple follow up studies in the record.
In an attempt to distill the essence of the work reported, it ** seems ** that researchers found that by packing Deuterium into natural uranium or ? perhaps ? nuclear waste, the natural emission of neutrons ? may have caused some fusion events in the Deuterium, which ? may have generated more neutrons, with the ultimate result being heat that can be harnessed?
Update later after conversation with Gemini: It appears that the research to date has used titanium or erbium as the metal into which (or with which) Deuterium is bound. In addition, it appears that gamma rays are needed to create favorable conditions for fusion, and those are supplied by delivery of high energy electrons from an external source.
My question for you is whether there might be another source of the required gamma rays?
The Lattice Confinement topic is available for explanations if any exist.
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For Calliban re topic on Cast Basalt...
I just reread the topic from the top. It flows nicely, and contributions by fellow NewMars members seem to add to the topic without swerving too far from the main theme.
SpaceNut brought in the similar (but decidedly different) concept of the geodesic dome.
The link you provided to the Nissen hut led to a well constructed and maintained Wikipedia article on the huts designed in 1914 (or so) and then constructed ever since in various forms and various names.
A wedge shaped cast block might serve as a construction element to make arches.
The link below leads to a collection of images. Stone arches are included.
https://www.google.com/url?sa=i&url=htt … AdAAAAABAE
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