Nathan Thomas, however, found himself on the other side of the classroom, teaching engineering students who, in many cases, were almost his own age. The Florida teenager has entered Guinness World Records as the world's youngest male professor, achieving the feat at 18 years and 346 days. From engineering professor to law studentBecoming a record-breaking professor hasn't put a ceiling on Thomas's academic ambitions. The journey behind the Guinness World RecordThe Guinness World Record may be the headline achievement, but Thomas's journey began long before he became the world's youngest male professor. Now, while teaching engineering students, Thomas is simultaneously working towards a law degree and a future in intellectual property law.