Wade-Dahl-Till valve was partially built by the novelist of what nationality?
Roald Dahl Roald Dahl ( , ] ; 13 September 1916 – 23 November 1990) was a British novelist, short story writer, poet, screenwriter, and fighter pilot. His books have sold more than 250 million copies worldwide.
A. S. M. Hutchinson Arthur Stuart-Menteth Hutchinson (2 June 1879 – 14 March 1971), commonly known by his initials A. S. M. Hutchinson, was a British novelist.