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INHALING HELIUM EXPLAINED

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Published on Aug 17, 2011

WARNING The affects of inhaling helium can cause you to die!!!!!!

It will cause your voice to change over an octave from its normal tone.

HOW: To inhale helium from a balloon you just need to breathe out, then breathe the helium in.

The speed (and pitch for that matter) of the sound varies with the molecular weight of the gas that you breathe in. The molecular weight of dry air at 0°C is about 28.964, while helium is about 4.003 at the same temperature. The speed of the sound in dry air (at 0°C again) is about 331.3 m/s, while in helium the speed of sound is 891.2 m/s. Therefore the frequency of the sound in helium is almost 2.7 times higher than the sound in dry air. This causes the octave change in your voice.

The Risks

Your body has no use for helium when it is inhaled into your lungs, you are essentially holding your breath for that whole time, so remember to breeth AIR-face. On rare occasions, people have died as a result of inhaling helium.

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