Sulfur Hexafluoride


News Team Takes the Barry White Challenge During Heavy Gas Experiment

Helium makes your voice sound high and squeaky, because it's six times lighter than air. But what about a gas that is six times heavier than air? I've done this demonstration several times before, including on the Ellen DeGeneres Show. It's…
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Dallas Fox 4 News Anchors Experiment with Insta-Snow and Reverse Helium (SF6)

The news anchors at Fox 4 News in Dallas wanted to see if I could find a few ways to make science fun on their Good Day show. Let's see... I could show them pictures of my science project from 3rd grade... or discuss freezing point depression...…
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The Deep Voice Gas – Sulfur Hexafluoride (SF6)

It was fun to see David Willey on The Tonight Show this evening doing some nice variations on the classic sulfur hexafluoride (SF6) demo. This is the inert gas that is six times heavier than the air we breath. If you breath in helium (six times…