Original sentence: He challenges Professor Robinson to a duel with what appears to be electrified épée, powered by a cumbersome battery pack attached to the belt.In the documentary Empire of Dreams, George Lucas stated that the origin of the lightsaber stemmed from his desire to place swordfights similar to those in The Adventures of Robin Hood in the Star Wars films.Inspiration for a “power sword” may have come from an episode of Lost in Space, called "The Challenge", in which The Ruler (played by Michael Ansara) proves his bravery, as much to his son Quano (played by Kurt Russell) as to the humans
Edited sentence: (1943) by Fritz Leiber, Nightwings (1968), by Robert Silverberg, an episode of Far Out Space Nuts (1975-1976), and The Lord of the Rings (1954, 1955) by J.(Quano was played by a very young Kurt Russell.) He challenges Professor Robinson to a duel with what appears to be electrified épée, powered by a cumbersome battery pack attached to the belt.Additional stories which may have inspired the lightsaber include: Kaldar, Planet of Antares (1933) by Edmond Hamilton, Gather, Darkness.Asimov's force-blade expands on his earlier invention of "a penknife with a force-field blade," first used in his Foundation novel (1951).In the documentary "Empire of Dreams", George Lucas stated that the origin of the lightsaber stemmed from his desire to place swordfights similar to those in The Adventures of Robin Hood in the Star Wars films.Inspiration for a “power sword” may have come from an episode of Lost in Space, called The Challenge, where The Ruler (played by Michael Ansara) proves his bravery, as much to his son Quano as to the humans.The lightsaber resembles a futuristic samurai sword