What a gas! Thanks to helium, floating mylar balloons announce an event, deliver birthday wishes, even send a message for a speedy recovery. And what about those giant characters in Macy’s parade? A huff of the gas will give the giggles and a squeaky voice. Beyond that frivolity, most of us don’t give helium much … Continue reading Helium: It’s a Gas at a Party, But Does It Get Due Respect?