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