This is a very entertaining read, and highly recommended.
He produced extremely fine threads of glass, quartz, etc. finer than the visible light diffraction limit. (Which he would use to construct sensitive torsion balances)
He was inspired by Peles Hair. (Volcanoes grow hair too...). He first describes electro-spinning and its limitations (uncontrolled growth of hair which mattes together).
How did he do it? He used a miniature crossbow, modified so he could trigger it by foot pedal, leaving his hands free to work.
He would first produce a small thin section by more conventional means, glue one end to a fine dart or arrow (a piece of straw really).
In the next sentence "blowpipe" is not a launching device, but a device to heat a small sample to a high temperature.
Then he would use a blowpipe and melt the piece of say quartz until a bead forms, at which point he would trigger the cross bow.
As the arrow of straw shot away it draws the bead of melt to a long fine thread.
Perhaps this can be modernized to vacuum or inert atmosphere, melt the quasi LK-99 sample until it beads, then shoot away. Rewind the resulting thread and re-anneal any non-superconductive segments.
_Perhaps this can be modernized to vacuum or inert atmosphere, melt the quasi LK-99 sample until it beads, then shoot away. Rewind the resulting thread and re-anneal any non-superconductive segments._
https://en.wikipedia.org/wiki/C._V._Boys
Especially: "On the Production, Properties, and some suggested Uses of the Finest Threads." 1887
https://zenodo.org/record/1431517/files/article.pdf
This is a very entertaining read, and highly recommended.
He produced extremely fine threads of glass, quartz, etc. finer than the visible light diffraction limit. (Which he would use to construct sensitive torsion balances)
He was inspired by Peles Hair. (Volcanoes grow hair too...). He first describes electro-spinning and its limitations (uncontrolled growth of hair which mattes together).
How did he do it? He used a miniature crossbow, modified so he could trigger it by foot pedal, leaving his hands free to work.
He would first produce a small thin section by more conventional means, glue one end to a fine dart or arrow (a piece of straw really).
In the next sentence "blowpipe" is not a launching device, but a device to heat a small sample to a high temperature.
Then he would use a blowpipe and melt the piece of say quartz until a bead forms, at which point he would trigger the cross bow.
As the arrow of straw shot away it draws the bead of melt to a long fine thread.
Perhaps this can be modernized to vacuum or inert atmosphere, melt the quasi LK-99 sample until it beads, then shoot away. Rewind the resulting thread and re-anneal any non-superconductive segments.