Wade-Dahl-Till valve was partially built by the novelist of what nationality?
Wade-Dahl-Till valve The Wade-Dahl-Till (WDT) valve is a cerebral shunt developed in 1962 by hydraulic engineer Stanley Wade, author Roald Dahl, and neurosurgeon Kenneth Till.
Nathaniel Hawthorne Nathaniel Hawthorne ( ; born Nathaniel Hathorne; July 4, 1804 – May 19, 1864) was an American novelist, dark romantic, and short story writer.