T here’s a big buzz around superconductors at the moment. It follows the publication of a study on arXiv that claims to have discovered the “first room-temperature ambient-pressure superconductor”, called LK-99. This concept is a holy grail in science, and could lead to a revolution in the efficiency of transport, the energy grid, and more. You may have seen an image on social media of LK-99 appearing to levitate. So are we at the cusp of a world-changing discovery? The reality is a little more murky, with experts doubting the key claims in the study. However, there’s plenty of interesting…