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Lighter Than Air Flight

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No Wonder You Wonder!


Lighter than Air flight is just filling a bag of some sort with gas that is lighter than air. Then, the difference lifts it, like Styrofoam in water, and you too if you’re attached and it is strong enough. Remember Fig. 12 of Weird Reality? If something is lighter than the fluid around it, it pulls away from gravity. This works for boats and for balloons. There are a couple of easy ways to fill a bag with lighter-than-air gas. The first is to heat it, because hot air is lighter than cold air.

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Phipps, C. (2016). Lighter Than Air Flight. In: No Wonder You Wonder!. Springer, Cham.

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