MaxMalytskyy2013 MaxMalytskyy2013

31-01-2015
Chemistry

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What was helium used for in the past?

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sciencetimes1 sciencetimes1

31-01-2015

Helium used to be used in hot air balloons. Then, when the Hindenburg exploded, annexed file, they realized that hydrogen was not only lighter, but it also was less flammable.

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Mathman101 Mathman101

31-01-2015

Hot air balloons. They have a little hot plate/fire or whatever and they used, and that made the helium rise, thus rising the balloon.

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