This episode references the real-life story of David Hahn (the "Radioactive Boy Scout"), a teenager who attempted to build a breeder reactor in his backyard shed. The climax involves Sheldon realizing the extreme danger of his project.
A Nuclear Reactor and a Boy Called Lovey young sheldon s02e13 720p webrip
Here is the informative text for in 720p WEBRip format. This episode references the real-life story of David