One of the early literary works dealing with the nuclear age, first set to music and performed in 1946.

"Uranium 235 tries to teach its audience more than simply how radiation and atomic bombs work; it tries to show scientists as a part of society, not separate from it. MacColl offers an artistic education focusing on the efforts of the public to ignore scientists' warnings about nuclear power. The main plot of the play is a scientist's explanation to various members of an audience about the scientific history of the atomic bomb (going back to Democritus and the idea of atoms but centering on the last 200 years)... Part of a significant minority of science plays of the period, Uranium 235 is at work to shift some of the responsibility for the use and development of atomic power to the citizens who have, sometimes wilfully, failed to comprehend what scientists and politicians have been doing" (Halpin, Contemporary Physics Plays, p. 11).