I appreciate the playfulness of the Manchester chemists playing around in their videos. They show great curiosity and seem honestly fascinating by the results. The above video shows them running electricity through wires of various metals - copper, aluminum, magnesium, brass, tungsten, gold, molybdenum - in open atmosphere.
Even more impressive to me is their tenacity in trying to explain something once they get unexpected or at least curious results. In the video below, they explore the phenomenon of molybdenum wires producing what they refer to as unduloids - regularly spaced molybdenum blobs - on the surface of the heated wire.
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