[alted]

Fun fact: you may know silver (followed by copper) is the metal with the highest electrical conductivity at room temperature, but this is only true in bulk.

When a piece of metal is thinner than 100nm or so, its conductivity increases basically due to electrons hitting the sides. At these thicknesses, obscure metals like ruthenium, rhodium, and iridium can sometimes have higher conductivity than copper and silver. [1]

[1] https://doi.org/10.1063/1.5133671

[mikewarot]

This may be one of those corner cases where something that seems like either bunk or science fiction might show up, I give you, the Ultraconductor[1] a one dimensional conductor with 10^6 times the conductivity of silver.(If it isn't a scam, of course)

[1] http://www.superconductors.org/ultra.htm

[nicholas-cc]

Looks like the author's company failed, but he's back working on similar technology? See https://www.linkedin.com/in/kevin-shambrook-a4884a4/.