Sulfur hexafluorideJanuary 11, 2007Seen, Heard, Said The times they are a-changin’. This post seems to be older than 13 years—a long time on the internet. It might be outdated. Your lousy program doesn’t support embed data. Visit AFdN to see the video! Sulfur hexafluoride. 5.11 times as dense as air. Freaky! “Any sufficiently advanced technology is indistinguishable from magic.” – Arthur C. Clarke, Clarke’s three laws via BoingBoing 0 Related 1 thought on “Sulfur hexafluoride” Pingback: StumbleUpon Comments are closed.