Balloon

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Balloon are flexible membranes filled with gas.

[edit] Types

Toy balloon	Ceiling balloon	Weather balloon	Hot air balloon
Captive balloon	Airship	Research balloon

[edit] Historic

Balloons, 1919.		Montgolfière	Mendeleev's balloon «Russkiy». 7.VIII.1887
		over the Tuileries, Paris, 1878	Spherical balloon