From Steve Spangler I learnt this "party trick" demonstration of how the polymer molecules (polyethylene) in a plastic bag are entangled with one another.
I was not sure that it would work as easily as it did for him. But it did!
In 1994 superconductivity was discovered in strontium ruthenate (Sr2RuO4). This attracted considerable interest because it had a perovskite...
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