brett said if a new federal government decided to withdraw the workforce supplement funding after the first year dpg had agreed to fund a 3 % increase in the second and third years of the agreement
Pure helium is a medium that allows sound to pass through it more quickly than air, so it makes your voice sound higher pitched (the mechanics are similar to speeding up a video and hearing the sound pitch up). Some gases will do the opposite; most commonly, sulfur hexaflouride, which slows down sound waves.
sulfur hexafluoride is safe to inhale in small amounts and it makes your voice really deep. But make sure its a small amount because its 6 times heavier than oxygen so it willâ¦ take awhile for the air to go out(i would suggest standing upside down when you want it out so it will just fall out of your lungs).