The LK-99 Superconductor Mystery and evoBOT

Summary of my bookmarked links from Aug 17th, 2023


  • evoBOT

    Fraunhofer IML researchers are innovating in the field of autonomous mobile robot systems with the evoBOT. This modular robot boasts high agility and adaptability, extending its applications beyond logistics into urban settings. Unlike its counterparts, the evoBOT's capabilities encompass intricate actions like handing over and rotating items. Its bio-inspired design fosters human-robot interaction, positioning it as a versatile personal assistant. The evoBOT's stability relies on an innovative inverse compound pendulum concept, enabling it to traverse uneven terrains.

  • LK-99 isn’t a superconductor — how science sleuths solved the mystery

    Scientists at the Max Planck Institute for Solid State Research have debunked the claim that LK-99, a copper-lead-phosphorus-oxygen compound, is a room-temperature superconductor. Initial excitement surrounded LK-99's levitation and resistivity properties, but replication attempts revealed that impurities, specifically copper sulfide, caused these effects. Beijing-based teams also confirmed these findings. X-ray imaging and crystal growth by the Max Planck team demonstrated LK-99's insulating nature without impurities, dispelling superconductivity claims. The episode highlights the need for caution in interpreting experimental results and underlines the importance of rigorous analysis in scientific discoveries.