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A comment on Physicists Have Identified a Metal That Conducts Electricity But Not Heat (2017). Parent comment

Re:Physicists Have Identified a Metal That Conducts Electric... by ars on Sunday December 01, 2019 @02:00PM (#21677166)
> how to make transparent aluminum

Which is just alumna (aluminium oxide, AKA ruby and other gems).

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Re:Physicists Have Identified a Metal That Conducts Electric... by agumonkey on Monday December 02, 2019 @04:00PM (#21686870)
Homelab torch process can be seen on YouTube
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