= Superconductor resistivity experiment video
https://andor.oxinst.com/learning/view/article/measuring-resistance-of-a-superconducting-sample-with-a-dry-cryostat Not a video, but well done, by <Oxford Instruments>.
\Video[https://www.youtube.com/watch?v=8gMKuy-gDQc]
{title=Superconductor, <Four-terminal sensing>[4-probe measurement] by Frederiksen Scientific A/S (2015)}
{description=OK experiment, illustrates the educational kit they sell. No temperature control, just dumps <liquid nitrogen> into conductor and watches it drop. But not too bad either. The kit sale link is broken (obviously, enterprise stuff), but there are no archives unfortunately. But it must be some <High-temperature superconductor>}