An archaeologist is seen on a screenshot from a video of an excavation in the basement of a building on Gracechurch Street in London’s financial district. MOLA hide caption toggle
An archaeologist is seen on a screenshot from a video of an excavation in the basement of a building on Gracechurch Street in London’s financial district. MOLA hide caption toggle
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The original version of this story appeared in Quanta Magazine. In 2024, superconductivity—the flow of electric current with zero resistance—was discovered in three distinct materials. Two instances stretch the textbook