Robert Fulton the "Nautilus", the first practical submarine in history. Fulton is also credited with inventing some of the world's earliest naval torpedoes for use by the British Royal Navy. Fulton became interested in steam engines and the idea of steamboats in 1777 when he was around age 12 and visited state delegate William Henry of Lancaster, Pennsylvania, who was interested in this topic. Henry had learned about inventor James Watt and his Watt steam engine on an earlier visit to England. Robert Fulton was born on a farm in Little Britain, Pennsylvania, on November 14, 1765. He had three sisters –
Claims to the first powered flight its twin steam engines. Several years later in 1906, following Blériot's first successful flights Ader claimed publicly that his "Éole" had flown for 330 ft (100 m) in 1891, and that the "Avion III" had flown for 1,000 ft on the second day of its trials. Ader's claim for the "Avion III" was refuted four years later in 1910, when the French Ministry for War finally published its report on his work. His claim for the "Éole" also collapsed through lack of credibility. When Gustav Weisskopf immigrated to the United States he changed his name to Gustave Whitehead. There he