You are using an older browser version. Please use a supported version for the best MSN experience.

The fascinating way helium changes your voice

Inhaling helium and talking like Daffy Duck is a classic party trick. But not many know how helium works. Helium is much lighter than air, so sound waves move much faster through the gas. This amplifies the higher frequencies in your voice. The gas sulfur hexaflouride works in the opposite way.



Strange News


Featured Partners

image beaconimage beaconimage beacon