Tell me the principle of hot air balloons

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The hot air balloon is not blocked like a helium balloon, it's pierced below, but it's not like using light helium like a helium balloon.

I think it's just heating it with a burner, what principle comes to mind?

568 2 8 years ago

popular Meaning of a.k.a

pu1. A hot air balloon uses the principle that hot air is lighter than cold air. The air is heated in the burner under the hot air balloon, and the air fills the air balloon. So the whole hot air balloon comes to mind

2017-12-23

pu2. I see. Thank you for letting me know!

2017-12-23

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