Popcorn is everywhere in American culture. We eat it at sporting events, send each other tubs of caramel corn for the holidays and string it up around the Christmas tree as an edible decoration. Half ...

Imagine this. You take a bunch of popcorn kernels, and pour them into a glass bowl. Now, predict which ones will pop and which ones won't. Let's isolate one popcorn kernel. In it, there's a water ...