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An airship, made up of a huge gas-filled balloon, and powered by propellers.
The HIndenberg was filled with highly flamable Hydrogen.Hydrogen is lighter than air so it rises.
The air around the airship has gravitational potential energy as well. When the airship rises, this air is able to go down to occupy the space the airship formally took up.
no, not always. there's the choice of hydrogen or helium.
Airships and Zeppelins and Observation balloons were used successfully in WW1. They were filled with Hydrogen which is the lightest gas but is also explosive when ignited. (Later, airships began to use Helium) The airship flew because it was filled with a gas that was lighter than the air so that it "floated" in the sky. This is the same theory that makes boats float. For an airship to fly, the weight of the airship and the hydrogen contained it in has to be less than the weight of the Air it displaces. In other words, the Airship takes up space in the air and if it weighs less than the air, then it will fly. For it to move forward, the airship had propellors to push it forward. It also had control surfaces on the tail to turn it and help it climb or dive.
It was hydrogen. That's why it caught fire. Modern airships use helium.
They could be, but generally are not. Hydrogen can be an explosive gas in our atmosphere, and a spark could cause the balloon to ignite and explode. In 1937, the airship Hindenberg, which was filled with hydrogen, did so. Children's party balloons are generally filled with helium.
German zeppelins, or rigid airships, were filled with hydrogen gas. Hydrogen is very flammable, so if there was a leak in the gas bag, any spark could set the airship on fire. However, this only happened once, to the airship Hindenburg, which burned and crashed while landing at Lakehurst, New Jersey. To be honest, zeppelins were pretty safe ways to travel.
the break in the inner crust that is not filled with magma is called
A Zeppelin was a rigid dirigible ("steerable") airship filled with a buoyant gas (such as hydrogen or helium) that would allow it to float in the air. Named for the German Count Ferdinand von Zeppelin, who did a lot of the early development of this technology.
Filled cookes are simply what it's called. They are cookies filled with ingredients such as jelly, chocolate, etc.
The Hindenburg was filled with highly flammable hydrogen gas which ignited as the airship was landing at Lakehurst NJ in 1936. 35 of the 97 passengers and crew, as well as one ground crew worker, were killed in the inferno.