Complex sentence: Bragg's research work was interrupted by both World War I and World War II. During both wars he worked on sound ranging methods for locating enemy guns, in this work he was aided by William Sansome Tucker, Harold Roper Robinson and Henry Harold Hemming.
Split into simpler sentences: Bragg's research work was interrupted by both World War I and World War II. During both wars he worked on sound ranging methods for locating enemy guns. In this work he was aided by William Sansome Tucker, Harold Roper Robinson and Henry Harold Hemming.