bn:00404908n
Noun Concept
Categories: French inventions, 1783 introductions
EN
gas balloon  Charliere  Charlière  gas balloons  helium balloon
EN
A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air. Wikipedia
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EN
A gas balloon is a balloon that rises and floats in the air because it is filled with a gas lighter than air. Wikipedia