A reactor is a device that creates and controls a nuclear reaction. The guy in question created a homemade nuclear reactor in his backyard.
No, it is highly illegal to create a homemade nuclear reactor without proper authorization and safety measures in place. It poses a significant risk to public safety and the environment.
The guy most likely acquired the materials and knowledge through illegal means, such as purchasing restricted materials or obtaining information from the black market. Building a nuclear reactor requires extensive knowledge and resources that are closely monitored and regulated by government agencies.
It is unclear if the guy's reactor actually worked as there is limited information available about the specific case. However, it is highly unlikely that a homemade reactor would be able to sustain a nuclear reaction without proper equipment and expertise.
The potential dangers and consequences of building a homemade reactor include exposure to harmful radiation, the risk of a nuclear meltdown or explosion, and severe legal repercussions. It also poses a significant threat to public safety and the environment.