How to remove the Coke can from the Coke!
In this video we do something really silly and remove a can from the coke it contains.
To do the demonstration: First get any soft drink can and using sandpaper, sand off the label. Then open the can and suspend it by the tab in 5% hydrochloric acid. The exact concentration is not critical. The can must be opened or it will rupture as the aluminum is removed.
Over the course of an hour, the aluminum in the can will be attacked by the acid and dissolve away. This leaves behind the drink and also a very thin plastic liner inside the can. This liner protects the drink from leaching metals out of the can. Carefully lift the can to reveal the liner still holding the drink.