The math of why bigger pizzas are such a good deal is simple. A pizza is a circle, and the area of a circle increases with the square of the radius.
So, for example, a 16-inch pizza is actually four times as big as an 8-inch pizza.
And when you look at thousands of pizza prices from around the U.S., you see that you almost always get a much, much better deal when you buy a bigger pizza.
Forget frozen pizza; science has finally created a slice that can last three years on the shelf before going bad.
No, it's not DiGiorno. It's a ready-to-eat meal — known as a MRE — created for the military. In combat zones where field kitchens are not an option, soldiers rely on these meals, which don't need to be refrigerated or frozen.