thatscienceguy:

The glass tank is filled with a gas called Sulfur Hexafluoride which is a one of the more dense gases, and it also happens to be as transparent as air so it gives the illusion of something floating in mid air, when it is really just acting like a boat in water.

thatscienceguy:

The glass tank is filled with a gas called Sulfur Hexafluoride which is a one of the more dense gases, and it also happens to be as transparent as air so it gives the illusion of something floating in mid air, when it is really just acting like a boat in water.

(via thatscienceguy)