
This interesting experiment shows a ship floating on sulfur hexafluoride gas. Video after the jump.
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. It’s 5.11 times as dense as air. It’s non toxic, although it’s byproducts can be extremely dangerous
[via Neatorama]