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Wojska balonowe II RP 03 Second Polish Republic
Резюме
Polski: Balon obserwacyjny przygotowany do startu. Obok balony zaporowe.
Public domain image of a balloon aerostat, early aeronautics, no copyright restrictions image - Picryl description
Blimp a large aircraft without wings, consisting of a large bag filled with gas that is lighter than air and driven by engines. In the past passengers were carried in a structure hanging below. In 1852, Henri Giffard built the first powered airship, which consisted of a 143-ft (44-m) long, cigar-shaped, gas-filled bag with a propeller, powered by a 3-horsepower (2.2-kW) steam engine. Later, in 1900, Count Ferdinand von Zeppelin of Germany invented the first rigid airship.
Теги
Дата
2016
Источник
Wikimedia Commons
Информация о правах
public domain
