Hexafluorid
The explanation that came with this on YouTube says:
Get enchanted by a aluminium foil ship floating above ground on hexafluorid (gas significantly denser than air) at the Physikshow of the University of Bonn!
What they have is Sulfur hexafluoride. It’s 5.11 times as dense as air. It’s non toxic, although it’s byproducts can be extremely dangerous.
Another interesting point is that inhaling this gas will make your voice sound deeper. Sound does not travel as fast in this medium. Helium can transmit sound very rapidly, hence making your voice squeaky.
Cool effect, but I’d worry more on the effect of this gas. Enough so that I would double and triple check before breathing any of it. Mind, I did make a note for any time I need a cheat to lower someone voice for a moment in a show.
Tags: Interesting, Oddities, Science, Video, Weird
Very interesting. I never knew that such gas existed
This sounds like quite an interesting gas.