Airships
15 artifacts in this set
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"Airship" refers to any lighter-than-air craft that moves under its own power. Lift is achieved using a gas, like hydrogen or helium, that is less dense than surrounding air. Non-rigid airships -- blimps -- use the gas's pressure on the containment envelope to maintain their shape. Rigid airships -- Zeppelins -- support their gas cells with an internal framework. In peace and in war, airships have known triumph and tragedy.
