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Re:The First Room-Temperature Ambient-Pressure Superconductor by floxy on Tuesday July 25, 2023 @04:09PM (#36868611)
Just so everyone is on the same page, static passive diamagnetic levitation is possible with materials like pyrolytic graphite.

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

https://www.kjmagnetics.com/blog.asp?p=diamagnetic-levitatio...

...and superconductors are usually perfectly diamagnetic.

Re:The First Room-Temperature Ambient-Pressure Superconductor by colechristensen on Tuesday July 25, 2023 @09:55PM (#36872225)
Every substance is one of

* ferromagnetic - attracted to one pole of a magnet but not the other (in a given orientation), this is what everybody thinks of when they think of "magnets"

* paramagnetic - attracted to both poles, i.e. stuff that sticks to magnets

* diamagnetic - repelled by both poles, except in superconductors, this effect is very weak compared to the forces experienced involving ferro-ferro or fero-paramagnetic materials.

There isn't another category, everything fits in to one of those buckets.

Saying

>Just so everyone is on the same page, static passive diamagnetic levitation is possible with materials like pyrolytic graphite.

is a bit deceptive, as what people know as "magnetic" materials are ferromagnetic.

Re:The First Room-Temperature Ambient-Pressure Superconductor by CMScientist on Wednesday July 26, 2023 @10:39PM (#36888232)
You literally missed the most common magnetic phase - antiferromagnetism