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Dirigible

usgb/ˈdɪrɪdʒəbl/Volume
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Historic VehiclesPlay
Dirigibles were popular before modern airplanes and helicopters. SlideDirigibles are rarely used today, unlike their heyday in the early 20th century.
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Not Always ZeppelinsPlay
While similar, not all dirigibles are Zeppelins; Zeppelin is a specific brand. SlideWe spotted a dirigible, but it wasn't the famous Zeppelin.
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Gas Type MattersPlay
Dirigibles are often associated with hydrogen, but helium is used today for safety. SlideModern dirigibles avoid hydrogen due to the Hindenburg disaster.