Sulfur Hexafluoride - Deep Voice Gas

Steve and the 9News team try breathing a little Sulfur Hexafluoride to see how it changes their voice. About Steve Spangler Science... Steve Spangler is a celebrity teacher, science toy designer, speaker, author and an Emmy award-winning television personality. Spangler is probably best known for his Mentos and Diet Coke geyser experiment that went viral in 2005 and prompted more than 1,000 related YouTube videos. Spangler is the founder of , a Denver-based company speciali