Death ray The death ray or death beam was a theoretical particle beam or electromagnetic weapon first theorized around the 1920s and 1930s. Around that time, notable inventors such as Guglielmo Marconi, Nikola Tesla, Harry Grindell Matthews, Edwin R. ... Such armaments are technically known as directed-energy weapons. Is death ray is possible ? It's possible , if unlikely, that the Government secretly took the Tesla death ray . In his later years, the same time he claimed to have built a death ray , his condition was rapidly growing worse. In fact, the death ray wasn't the only invention he claimed to have created but never produced for the public. which scientist try to make death ray ? In 1923, Edwin R. Scott, an inventor from San Francisco, claimed he was the first to develop a death ray that would destroy human life and bring down planes at a distance. He was born in D...