World War II ​ — A Time of Testing As the clouds of war gathered, Stanley Rogers and I were busy advertising the public lecture “Face the Facts, ” to be given at London’s Royal Albert Hall on September 11, 1938.
उस साइडकार के पीछे, दो मीटर लंबे टेलीस्कोप जैसी नली पर एक लाउडस्पीकर लगाया जाता था ।