# Record-Breaking Levitating Magnet Spins at Unprecedented Speeds Researchers achieve record rotation rates using superconducting levitation for potential quantum and dark matter research. - **Source:** [New Scientist](https://www.newscientist.com/) - **Published:** 2026-11-06 - **Topic:** [science](https://brifing.si/c/science) - **Original article:** - **On Brifing:** https://brifing.si/s/7775d026-1af0-49ab-9776-4aabb1d613ee ## Record-Breaking Rotational Velocity Researchers have successfully accelerated a tiny neodymium-iron-boron magnet to 138 million revolutions per minute. This achievement makes it the fastest spinning object visible to the naked eye ever constructed. The rotor maintains remarkable stability, taking 17 days to lose half its speed, comparable to the rotational decay patterns observed in planetary bodies. ## Superconducting Levitation Mechanism The experiment utilizes the Meissner effect, where superconductors expel magnetic fields to create repulsive forces. By placing a 30-micrometre sphere above lead cooled to -269°C using liquid helium, the team achieved frictionless levitation. This extreme cryogenic environment ensures the magnet remains suspended without physical contact, preventing energy loss through surface collisions or friction. ## Vacuum Chamber Isolation To minimize environmental interference, the magnet is enclosed in a vacuum chamber devoid of air particles. This isolation is critical for maintaining the rotor's high-speed stability and preventing drag. By eliminating gas molecules, the researchers created a near-perfect environment that allows the magnet to spin with minimal external influence or kinetic energy dissipation. ## Comparison to Existing Records While previous records for the fastest human-made rotating objects involved nano-sized spheres levitated by laser beams, those were invisible to the naked eye. This new rotor, measuring approximately 30 micrometres, bridges the gap between microscopic particles and macroscopic objects. It represents a significant milestone in controlling larger masses at extremely high rotational speeds. ## Applications in Quantum Computing The device functions as a highly sensitive gauge for vacuum conditions at cryogenic temperatures. This capability is particularly valuable for quantum computer developers who must maintain isolated, ultra-cold environments for hardware operation. The magnet provides a precise diagnostic tool to monitor these delicate systems without introducing heat or mechanical interference into the setup. ## Probing Fundamental Physics Beyond sensing, the magnet serves as a platform for testing fundamental physics theories. Researchers aim to use its sensitivity to detect elusive dark matter particles or measure gravitational waves at unexplored frequencies. By observing how the magnet interacts with its surroundings, scientists hope to uncover new phenomena that remain hidden from current detection methods. ## Exploring Quantum-Gravity Interplay At temperatures near absolute zero, quantum effects become the dominant force governing the magnet's behavior. This allows researchers to investigate the complex interplay between quantum mechanics and gravity at the micrometre scale. Such experiments are essential for understanding how physical laws transition from the microscopic quantum realm to the macroscopic world we observe. ## Future Research Implications The ability to precisely measure magnetic fields using this levitated rotor opens new avenues for high-precision metrology. As the team continues to refine the setup, the potential for discovering new physics grows. This technology provides a robust, stable platform for future experiments that require extreme isolation and sensitivity to subtle environmental changes. ## Sources covering this story - https://www.newscientist.com/article/2597816-record-breaking-fast-spinning-magnet-could-help-uncover-new-physics/?utm_campaign=RSS|NSNS&utm_content=home&utm_medium=RSS&utm_source=NSNS — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._