helium balloon light

j.briggs87 | 22:35 Sun 12th Dec 2004 | How it Works

4 Answers

how does a helium balloon light up?

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Mattk

do you mean 'hot air' balloons ?

they light up when the flame is used to heat the gas up

because the gas is hydrogen, not helium

...sorry, propane

Gef

Just to clear this up. The balloon is filled with air (non-flammable) which is heated by a propane burner.

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