Spangler Science: This 'deep voice gas' will make it sound like you're possessed

You've probably heard of breathing in helium from balloons to make your voice sound high-pitched, but science guy Steve Spangler shows us how to use sulfur hexafluoride to achieve the opposite effect.
Published: 6:18 PM MDT June 17, 2019
Updated: 5:23 PM MDT July 26, 2019