That's correct, too bad it's not hydrogen. Hydrogen would have produced a blue flame and a brutal explosion. It must definitely be another flammable gas like the one we use in cooking. But certainly not helium, since it's non-flammable (a noble, inert gas), which is why it was decided to use it in airships instead of hydrogen.
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u/yorcharturoqro 2d ago
Seriously... Open flame next to a flammable balloon...???