GENERAL KNOWLEDGE

Detailed explanation-1: -Ferdinand von Zeppelin conceived and developed the first rigid dirigible, a lighter-than-air vehicle, known as the zeppelin.

Detailed explanation-2: -The first Zeppelin airship was designed by Ferdinand, Graf von Zeppelin, a retired German army officer, and made its initial flight from a floating hangar on Lake Constance, near Friedrichshafen, Germany, on July 2, 1900.

Detailed explanation-3: -The first successful airship was constructed by Henri Giffard of France in 1852. Giffard built a 160-kilogram (350-pound) steam engine capable of developing 3 horsepower, sufficient to turn a large propeller at 110 revolutions per minute.

Detailed explanation-4: -Count Ferdinand von Zeppelin (German: Ferdinand Adolf Heinrich August Graf von Zeppelin; 8 July 1838 – 8 March 1917) was a German general and later inventor of the Zeppelin rigid airships. His name soon became synonymous with airships and dominated long-distance flight until the 1930s.