Depending on the direction and speed at which the foam expands, you can actually get four distinct popcorn shapes! A kernel of popcorn is basically a bunch of starch and a little bit of water ...

First off, popcorn isn’t just any old corn. It’s a cultivated strain of flint corn known as zea mays everta. Its kernel is also a whole grain—it consists of the bran (the hull or outer covering), the ...