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Search title: Andrew McCalip on Twitter: "Meissner Effect or Bust: Day 12 It might be a bust… we may be over... Positives first! I had one of the very first syntheses in the United States and produced a Pb-apatite structure that demonstrated lattice contraction along with an anomalous magnetic effect. The sample was… https://t.co/U4eQE1HSLk" / Twitter

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