A Cambridge University engineering student has spun his way into the record books by achieving the longest duration for spinning a fidget spinner on one finger. James Goh, an undergraduate at the prestigious institution, set a new Guinness World Record with an astonishing time of 30 minutes and 34.54 seconds, smashing the previous record by almost five minutes.
Engineering Expertise Applied to Record Attempt
Goh, who studies engineering at Cambridge, designed and built his own 'pulsar fidget spinner' specifically for the record attempt. Applying his knowledge of aerodynamics and tribology, he created a spinner optimised for maximum spin time. The device features a lightweight hollow aluminium core with dense tungsten concentrated at the edges to maximise kinetic energy and prolong the spin duration.
Official Record Certification
The record was officially set in Hong Kong on 16 December 2025, with Goh successfully spinning the fidget spinner on one finger for over half an hour. His achievement highlights the intersection of engineering principles and everyday objects, demonstrating how scientific knowledge can be applied to seemingly simple toys.
Goh's record-breaking performance has been certified by Guinness World Records, adding his name to the list of unusual yet impressive achievements recognised by the organisation.



