The Hindenburg disaster
Hydrogen used to be used in airships.
Helium has replace hydrogen in airships
The gas that helium replaced was Hydrogen
hydrogen is VERY flammable, which makes it an unpleasant choice.
The gas was Hydrogen.
In their early history, buoyant airships (zepellins, blimps) were filled with hydrogen, a highly flammable gas. Since the Hindenburg disaster, hydrogen has been supplanted by helium, a much more expensive material, but one that is inert and hence much safer.
Airships do use gas, to provide lift.
It was hydrogen. That's why it caught fire. Modern airships use helium.
the gas that helps airships is i hate you wikianswers.com
gas is still used in airships to provide lift.
It's very light (only hydrogen gas is less dense than helium), it's relatively cheap, and (most importantly) it's not flammable (hydrogen gas is--the Hindenburg was filled with hydrogen gas).
Hydrogen was the gas that was once used to filled airships. It is extremely plentiful and easy to produce. However, it is also extremely flammable and caused a few accidents. Helium is now used.