Why does your soda or beer can look the way it does? There's actually a very good engineering explanation for this. The University of Illnois' Bill Hammack aka The Engineer Guy explains all of this in this video below:

The can's cylindrical shape optimizes stacking and shipping potential.

It begins as a small circle of metal, and is then punched into a tiny cup.

It is then pushed through a series of redrawn dies until it reaches its proper width.

The ironing ring will give it its proper size.

Watch the fascinating video below: