how a blimp works

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how a blimp works

In: Physics
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Basically same way as a hot air balloon, but a bit bigger. The gondola (passenger compartment/engine) is held up by the “blimp” part that’s filled with buoyant gas, and then the rudder and propellers in the gondola allow it to be steared

Same reason a polystyrene block floats on water.
Helium or hydrogen are lighter than air.
So a bag of helium or hydrogen is less dense then air. So it floats.
You can make the bag heavier by strapping something to it, like a place for people to sit and the whole thing might still be less dense than air float.

Big balloon with cabin built in gets filled with a gas

Different gasses have different weights/densities

Balloon floats in air by filling with gas lighter than air