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A comment on A Room-Temperature Superconductor? New Developments. Parent comment

Re:A Room-Temperature Superconductor? New Developments by declan_roberts on Tuesday August 01, 2023 @01:07PM (#36958903)
3% but keep in mind they can only push so much current through those wires before they start losing energy to heat, regardless of the voltage.

The same cable diameter can now power an entire state.

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Re:A Room-Temperature Superconductor? New Developments by roywiggins on Tuesday August 01, 2023 @01:11PM (#36958972)
Superconductors have a critical field, you can't pump unlimited amounts of current through a superconductor.

(I think there were some comments going around that this material has quite a low critical field, so there would have to be some substantial improvements on this even if it is superconducting)

https://en.wikipedia.org/wiki/Critical_field

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Re:A Room-Temperature Superconductor? New Developments by AlexandrB on Tuesday August 01, 2023 @02:27PM (#36960237)
I remember going down the rabbit hole on superconductors a few years ago and finding out that they were limited by a critical field. It was both reassuring and disappointing and largely for the same reason - there's no truly "free lunch" in nature.
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