Faced with the mindbending dilemma of what to do with 10 liters of LN2, I decided to cool a spool of enameled wire to ~70 degrees Kelvin. While it’s not what I would call a true superconductor, at least my cheap multimeter rounded its reading to 0 ohms.

I think it’s still pretty “cool”.

LN2 “Superconductor”