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 hexafluoride works in the opposite way.

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 hexafluoride works in the opposite way.

According to The Franklin Institute, the reason our voices sound different after inhaling helium is because it’s a less dense gas. Thus, it enables our vocal cords to move faster and changes the ...

collapsed in front of her horrified family after joining in with the stunt to make her voice squeaky. Guests had been inflating balloons with a helium canister and using them to inhale the gas.

Kicking off his NFC North Tour is a stop at Buffalo’s Helium Comedy Club this Wednesday ... takes from some of those worlds’ best-known voices. Jerry Seinfeld’s bewilderment at Stanley ...

That’s because Helium introduced three new mobile plans this week, including the nation’s first free phone plan. For $0/month, you get 3GB of data, 300 texts, and 100 minutes of voice calling.