News > 12-year-old kid builds a nuclear fusion reactor 

12-year-old kid builds a nuclear fusion reactor 

A teen genius at a U.S. middle school has built a working, tiny nuclear fusion reactor and made it into Guinness World Records “just hours” before his 13th birthday.

At just 12 years old, Oswalt beat the previous world record by a full two years. He joins a running list of “fusioneers” who have achieved fusion at home.