Brian Shrader's Siteseeing Blog

Invisible Water!

Posted August 6, 2007 8:22 a.m. EDT

Here's a fun video with some scientific underpinnings.  These guys have filled a tub with a gas called sulfur hexaflouride.  It's six times heavier than air.   Watch the video as they put a little foil boat in the tank!

Another video on YouTube shows a guy inhaling it.  Because sulfur hexaflouride is more dense, it has the opposite effect of helium on the voice!

About this Blog:

WRAL's Brian Shrader blogs about cool video clips and other interesting Web sites. If you have any video you would like to share, please let us know.