Core Insights - Scientists at Okinawa Institute of Science and Technology have developed a nearly frictionless, freely suspended rotating graphite rotor, addressing the long-standing issue of "eddy current damping" in macroscopic levitation systems [1][2] - This innovation opens new avenues for high-precision measurements and quantum research by allowing experimental subjects to be isolated from external disturbances [1] Group 1: Technical Achievements - The new design eliminates eddy current damping under ideal conditions, enabling the rotor to operate in a contactless, freely suspended state, which significantly enhances measurement accuracy [2] - The rotor, made from a graphite disk approximately 1 centimeter in diameter and rare-earth magnets, demonstrates that perfect axial symmetry can completely eliminate eddy current damping [1] Group 2: Applications and Future Potential - The improved freely suspended rotor is expected to become a core component in high-precision sensors at millimeter and micron scales, applicable in high-sensitivity gyroscopes [2] - It has the potential to enter quantum states at low temperatures, facilitating the exploration of vacuum gravitational effects and other macroscopic quantum phenomena [2]