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KUSA - By their very nature, bubbles are harmless structures that make people happy.

That's unless you fill them with methane gas and light them on fire.

9NEWS science guy Steve Spangler shared the science of fighting fires in a very unconventional way Tuesday morning.

Learn more about Spangler's fire bubble experiment here: http://bit.ly/1qap86O.

(KUSA-TV © 2014 Multimedia Holdings Corporation)

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