Temporary restraining order. No temporary restraining order shall be granted without notice to the adverse party unless it clearly appears from specific facts shown by affidavit or by the verified complaint that immediate and irreparable injury, loss, or damage will result to the applicant before notice can be served and a hearing had thereon.
Helium is not only used to fill up balloons, but is also used in medicines and medical equipment. And as you noted, it will give you a high-pitched voice for a short period of time if inhaled. While the squeaky voice can be a crowd-pleasing party trick, huffing helium isnât always all fun and games.
If you replace the air (Nitrogen-Oxygen mix) with something LESS dense like Helium (1/6th the density of air) then the sounds made by the vocal chords working exactly the same as they did in air, will have a higher apparent pitch because the sonds they make move faster through helium than they do through air.