A) 1900 B) 1920 C) 1950 D) 1880
A) Leonardo da Vinci B) Alexander Graham Bell C) Ferdinand von Zeppelin D) Thomas Edison
A) Germany B) United States C) United Kingdom D) France
A) LZ 1 B) Sky Master C) Airship Alpha D) Flying Vapor
A) 200 meters B) 150 meters C) 128 meters D) 90 meters
A) Nitrogen B) Oxygen C) Hydrogen D) Helium
A) Scientific research B) Passenger transportation C) Military reconnaissance D) Cargo delivery
A) Charles Lindbergh B) Hugo Eckener C) Amelia Earhart D) Howard Hughes
A) The Hindenburg disaster B) High maintenance costs C) Competition from airplanes D) Lack of public interest |